Difference between revisions of "AK-74 Russian 5.45mm Automatic Assault Rifle"

Latest revision as of 16:00, 25 April 2022

tiers

false

true

false

categories

"WEG"

"Infantry Weapons"

"Rifles"

"Assault Rifles"

"Russia (RUS)"

"PRO_Afghanistan"

"PRO_Armenia"

"PRO_Azerbaijan"

"PRO_Belarus"

"PRO_Bulgaria"

"PRO_Burundi"

"PRO_China"

"PRO_Cyprus"

"PRO_Egypt"

"PRO_Kazakhstan"

"PRO_Lesotho"

"PRO_Mongolia"

"PRO_Myanmar"

"PRO_Nigeria"

"PRO_North Korea (Democratic People's Republic of Korea)"

"PRO_Poland"

"PRO_Romania"

"PRO_Russian Federation"

"PRO_Somalia"

"PRO_Tajikistan"

"PRO_Ukraine"

"PRO_Viet Nam"

"Land"

"Tier3"

notes

"The AK-74 (Russian: Автомат Калашникова образца 1974 года or "Kalashnikov automatic rifle model 1974") is an assault rifle developed in the early 1970s by Russian weapons designer Mikhail Kalashnikov to replace the earlier AKM (itself a refined version of the AK-47). It uses a smaller 5.45×39mm cartridge, replacing the 7.62×39mm chambering of earlier Kalashnikov-pattern weapons. The rifle first saw service with Soviet forces in the 1979 Afghanistan conflict. The head of the Afghan bureau of the Pakistani Inter-Services Intelligence claimed that the CIA paid $5,000 for the first AK-74 captured by the Mujahideen during the Soviet–Afghan War. Today, the rifle is used by most countries of the former Soviet Union. Licensed copies were produced in Bulgaria (AK-74, AKS-74 and AKS-74U), and the former East Germany (MPi-AK-74N, MPi-AKS-74N, MPi-AKS-74NK). The AK-74 was designed by А. D. Kryakushin's group under the design supervision of Mikhail Kalashnikov and is an adaptation of the 7.62×39mm AKM assault rifle and features several important design improvements.These improvements were primarily the result of converting the rifle to the intermediate-caliber high velocity 5.45×39mm cartridge. In fact, some early models are reported to have been converted AKMs, re-barreled to 5.45×39mm.Compared with the preceding AKM the AK-74 has better effective range, firing accuracy (a main development goal), and reliability. The AK-74 and AKM share an approximate 50% parts commonality (interchangeable most often are pins, springs and screws). The rifle's operation during firing and reloading is identical to that of the AKM. After ignition of the cartridge primer and propellant, rapidly expanding propellant gases are diverted into the gas cylinder above the barrel through a vent near the muzzle. The build-up of gases inside the gas cylinder drives the long-stroke piston and bolt carrier rearward and a cam guide machined into the underside of the bolt carrier along with an ejector spur on the bolt carrier rail guide, rotates the bolt approximately 35° and unlocks it from the barrel extension via a camming pin on the bolt. The moving assembly has about 5.5 mm (0.2 in) of free travel which creates a delay between the initial recoil impulse of the piston and the bolt unlocking sequence, allowing gas pressures to drop to a safe level before the seal between the chamber and the bolt is broken. Like previous Kalashnikov-pattern rifles, the AK-74 does not have a gas valve; excess gases are ventilated through a series of radial ports in the gas cylinder. Since the Kalashnikov operating system offers no primary extraction upon bolt rotation, the 5.45×39mm AK-74 bolt has a larger extractor claw than the 7.62×39mm AKM for increased extraction reliability. Other minor modifications were made to the bolt and carrier assembly. Specialized variants The AK-74 is also available in several "night-fighting" configurations, equipped with a side-rail used to mount sights. These variants, the AK-74N, AKS-74N and AKS-74UN can be used in conjunction with NSPU and NSPU-3 (1PN51) night sights, as well as optical sights such as the USP-1 (1P29). The variants designated AK-74N2 and AKS-74N2 can use the multi-model night vision sight NSPUM (1PN58).[56] The AKS-74UB ("B"—Russian: бесшумный; Besshumniy or "silent") is a sound-suppressed variant of the AKS-74U adapted for use with the PBS-4 suppressor (used in combination with subsonic 5.45×39mm Russian ammunition). Very little is known about this model."

dateOfIntroduction

1974

countryOfOrigin

"Russia (RUS)"

proliferation

"Afghanistan, Armenia, Azerbaijan, Belarus, Bulgaria, Burundi, China, Cyprus, Egypt, Kazakhstan, Lesotho, Mongolia, Myanmar, Nigeria, North Korea (Democratic People's Republic of Korea), Poland, Romania, Russian Federation, Somalia, Tajikistan, Ukraine, Viet Nam"

selectedregions

Empty array

checkedregions

Empty array

checkedcountries

"Afghanistan"

"Armenia"

"Azerbaijan"

"Belarus"

"Bulgaria"

"Burundi"

"China"

"Cyprus"

"Egypt"

"Kazakhstan"

"Lesotho"

"Mongolia"

"Myanmar"

"Nigeria"

"North Korea (Democratic People's Republic of Korea)"

"Poland"

"Romania"

"Russian Federation"

"Somalia"

"Tajikistan"

"Ukraine"

"Viet Nam"

dis

name	"Unknown"
string	"00.00.000.000.000.000.000"

images

"AK74ARif(B).jpg"

"AK74ARif(A).jpg"

sections

name

"System"

sections

name

"Dimensions"

properties

name	"Length, Overall"
value	"AK-74: 943 mm (37.1 in) AKS-74 (stock extended): 943 mm (37.1 in) AKS-74 (stock folded): 690 mm (27.2 in) AKS-74U (stock extended): 735 mm (28.9 in) AKS-74U (stock folded): 490 mm (19.3 in) AK-74M (stock extended): 943 mm (37.1 in) AK-74M (stock folded): 700 mm (27.6 in)"

name	"Length, Barrel"
value	"AK-74, AKS-74, AK-74M: 415 mm (16.3 in) AKS-74U: 206.5 mm (8.1 in)"

name	"Width"
value	"70"
units	"mm"

name	"Height"
value	"195"
units	"mm"

name	"Weight"
value	"AK-74: 3.07 kg (6.8 lb) AKS-74: 2.97 kg (6.5 lb) AKS-74U: 2.7 kg (6.0 lb) AK-74M: 3.4 kg (7.5 lb) without magazine 30-round magazine: 0.23 kg (0.51 lb) 6H5 bayonet: 0.32 kg (0.71 lb)"

properties

name	"Alternative Designation "
value	"AK, Kalashnikov"

name	"In Service"
value	"1974-Present"

name	"Action"
value	"Gas-operated, rotating bolt"

name	"Fire Mode "
value	"Selective, automatic or semi-automatic"

name	"Rate of Fire, Cyclic "
value	"600.0"
units	"rd/min"

name	"Rate of Fire, Practical "
value	"100, auto"
units	"rd/min"

name	"Rate of Fire, Practical "
value	"40, semiauto"
units	"rd/min"

name	"Feed System"
value	"30-rd detachable box magazine (40-rd used by RPK- 74 LMG is interchangeable)"

name	"Muzzle Velocity"
value	"880-900 m/s"

name	"Effective Firing Range, Point Target"
value	"500"
units	"m"

name	"Effective Firing Range, Area Target"
value	"500"
units	"m"

name	"Maximum Firing Range"
value	"5,150"
units	"m"

name	"Feed System"
value	"30-round or 45-round RPK-74 detachable box magazine or 60-round casket magazine"

name

"Ammunition"

sections

name

"Ammunition (Option 1)"

properties

name	"Name"
value	"7N6"

name	"Type"
value	"Ball"

name	"Caliber"
value	"5.45"
units	"mm"

name	"Armor Penetration "
value	"6 mm mild steel at 300 m, flak vest at 80 m "
units	"mm"

name	"Muzzle Velocity "
value	"880.0"
units	"m/s"

name	"Range, Effective "
value	"500.0"
units	"m"

name	"Range, Maximum "
value	"800.0"
units	"m"

name

"Ammunition (Option 2)"

properties

name	"Name"
value	"7N10 (Enhanced Penetration)"

name	"Type"
value	"Armor piercing"

name	"Caliber"
value	"5.45"
units	"mm"

name	"Armor Penetration "
value	"16 mild steel at 300 m; 5 armor plate at 150 m Flak vest 200 m"
units	"mm"

name	"Muzzle Velocity "
value	"880.0"
units	"m/s"

name	"Range, Effective "
value	"500.0"
units	"m "

name	"Range, Maximum "
value	"800.0"
units	"m"

name

"Ammunition (Option 3)"

properties

name	"Name"
value	"7T3M"

name	"Type"
value	"Tracer"

name	"Caliber"
value	"5.45"
units	"mm"

name	"Armor Penetration "
value	"INA"
units	"mm"

name	"Muzzle Velocity "
value	"880.0"
units	"m/s"

name	"Range, Effective "
value	"500.0"
units	"m"

name	"Range, Maximum "
value	"800.0"
units	"m"

name	"Trace"
value	"850.0"
units	"m"

properties

name	"Cartridge"
value	"5.45×39mm"

name	"Magazine"
value	"30-round or 45-round RPK-74 detachable box magazine or 60-round casket magazine"

name

"Sights"

sections

name

"Iron Sights"

properties

name

"Note"

value

"The AK-74 uses an adjustable notched rear tangent iron sight calibrated in 100 m (109 yd) increments from 100 to 1,000 m (109 to 1,094 yd). The front sight is a post adjustable for elevation in the field. Horizontal adjustment requires a special drift tool and is done by the armory before issue or if the need arises by an armorer after issue. The sight line elements are approximately 48.5 mm (1.9 in) over the bore axis. The "point-blank range" battle zero setting "П" standing for постоянная (constant) the 5.45×39mm AK-74 rear tangent sight element corresponds to a 400 m (437 yd) zero, compared with the 300 m (328 yd) zero for 7.62×39mm AKs. For the AK-74 combined with the 7N6 or 7N10 service cartridges the 400 m battle zero setting point-blank range limits the apparent "bullet rise" within approximately −5 to +38 cm (−2.0 to 15.0 in) under the line of sight. At the corresponding 440 m (481 yd) maximum point-blank range the bullet will have dropped to approximately −21 cm (−8.3 in) relative to the line of sight. Soldiers are instructed to fire at any target within this range by simply placing the sights on the center of mass (the belt buckle, according to Russian and former Soviet doctrine) of the enemy target. Any errors in range estimation are tactically irrelevant, as a well-aimed shot will hit the torso of the enemy soldier."

name

"Optical SIghts"

properties

name

"Note"

value

"While most Russian and CIS armed forces use the AK-74 in its basic configuration with iron sights, many magnified and non-magnified optical sights are available for designated marksmen and other special purpose troops in their respective militaries. For the 5.45×39mm AK-74, the East German Zeiss ZFK 4×25, 1P29, Belorussian BelOMO PO 3.5×21P, PO 4×24P and the 1P78 Kashtan dedicated side rail mounted optical sights were developed. These optical sights are primarily designed for rapid target acquisition and first round hits out to 400 m, but by various means these optical sights also offer bullet drop compensation (BDC) (sometimes referred to as ballistic elevation) for aiming at more distant targets. The BDC feature compensates for the effect of gravity on the bullet at given distances (referred to as "bullet drop") in flat fire scenarios. The feature must be tuned for the particular ballistic trajectory of a particular combination of gun and cartridge at a predefined muzzle velocity and air density. Since the usage of standardized ammunition is an important prerequisite to match the BDC feature to the external ballistic behaviour of the employed projectiles, these military optical sights are intended to assist with field shooting at varying medium to longer ranges rather than precise long range shots. The standard Russian side rail mounted optical sight was the 4×26 1P29 Universal sight for small arms. It was copied from and hence similar to the British SUIT (Sight Unit Infantry, Trilux). When mounted the 1P29 sight is positioned centered above the receiver at a height that allows the use of the iron sights. It weighs 0.8 kg, offers 4× magnification with a field of view of 8° and 35 mm eye relief. The 1P29 is issued with a canvas pouch, a lens cleaning cloth, combination tool, two rubber eyecups, two eyecup clamps and three different bullet drop compensation (BDC) cams for the AK-74/AN-94, RPK-74 and PK machine gun. The 1P29 is intended for quickly engaging point and area targets at various ranges and is zeroed for both windage and elevation at 400 m (437 yd). On the right side of the field of view a stadiametric rangefinder is incorporated that can be used to determine the distance from a 1.5 meters (4 ft 11.1 in) tall object from 400 to 1,200 m (437 to 1,312 yd). The reticle is an inverted aiming post in the top half of the field of view and is tritium-illuminated for low-light condition aiming."

name

"New Features"

properties

name

"Note"

value

"The AK-74 was equipped with a new buttstock, handguard (which retained the AKM-type finger swells) and gas cylinder. The stock has a shoulder pad different from that on the AKM, which is rubber and serrated for improved seating against the shooter. In addition, there are lightening cuts on each side of the buttstock. The buttstock, lower handguard and upper heatguard were first manufactured from laminated wood, this later changed to a synthetic, plum or dark brown colored fiberglass. The AK-74 gas tube has a spring washer attached to its rear end designed to retain the gas tube more securely. The lower handguard is fitted with a leaf spring that reduces play in the rifle's lateral axis by keeping the wood tensioned between the receiver and the handguard retainer. The receiver remains nearly identical to that of the AKM; it is a U-shaped 1 mm (0.04 in) thick sheet steel pressing supported extensively by pins and rivets. The internal guide rails on which the bolt carrier travels are stamped and spot welded to the inside of the receiver housing. Minor changes were made to the front barrel and rear stock trunnions as well as the magazine well. All external metal surfaces are coated with a glossy black enamel paint."

name

"Accessories"

properties

name

"Note"

value

"Accessories supplied with the rifle include a 6H4 or 6H5 type bayonet, a quick-loading device, three spare magazines, four 15-round stripper clips, maintenance kit, cleaning rod and sling. The bayonet is installed by slipping the muzzle ring around the flash hider and latching the handle down on the bayonet lug under the front sight base. The 6H5 AK-74 bayonet introduced in 1983 represents a further refinement of the 6H4 AKM bayonet. It introduced a radical blade cross-section, that has a flat milled on one side near the edge and a corresponding flat milled on the opposite side near the false edge. The blade has a new spear point and an improved one-piece molded plastic grip making it a more effective fighting knife. It also has saw-teeth on the false edge and the usual hole for use as a wire-cutter."

variants

name

"AKS-74"

notes

"The AKS-74 ("S"—Russian: складной; Skladnoy, or "folding"), is a variant of the AK-74 equipped with a side-folding metal shoulder stock, designed primarily for use with air assault infantry and developed alongside the basic AK-74. Unlike the AKMS's somewhat fragile underfolding stock (modeled after the MP 40 submachine gun stock), the AKS-74 stock is fabricated from stamped sheet metal struts, machine pressed into a "U" shape and assembled by punch fit and welding. The stock has a triangular shape; it lacks the folding shoulder pad found on the AKMS stock and is folded to the left side of the receiver. The hinged stock is securely locked in its extended position by a spring-loaded button catch located at the rear of the receiver. When folded, the stock is held closed by a spring-loaded capture hook situated on the left side at the front of the receiver housing. A rear-mounted sling swivel is also provided on the right side at the beginning of the stock frame. It retains the pistol grip reinforcement plate the AKMS used, though due to the less complex rear trunnion, only has one riveting hole in place of the three on the AKMS."

name

"AK-74M"

notes

"In 1991 the Izhmash factory in the city of Izhevsk began full-scale production of a modernized variant of the AK-74—the AK-74M (M—Russian: Модернизированный; Modernizirovanniy or "modernized") assault rifle that offers more versatility compared with its predecessor. Apart from several minor improvements, such as a lightened bolt and carrier assembly to reduce the impulse of the gas piston and bolt carrier during firing, the rifle features a new glass-filled polyamide stock that retains the shape of the original AK-74 fixed laminated wood stock, but side-folds to the left like the skeletonized AKS-74 buttstock. As a result, pistol grip reinforcement plates that were once exclusively used on the folding stock variants are standard on all AK-74Ms. Additionally the AK-74M features an improved muzzle device with extended collar and threads to reduce play and a machine cut beneath to allow easier cleaning rod removal, a reinforced smooth dust cover and a redesigned guide rod return spring retainer that allows firing the GP-25, GP-30 and GP-34 underslung grenade launchers without having to use the previously necessary additional receiver cover fastener. To reduce production costs, barrel hardware, such as the front sight base and gas block, are dimple pressed on to the barrel instead of pinned on (commercial semi-auto variants are still pinned on to maintain user serviceability). Other economic changes include omission of lightening cuts on the front sight block and gas piston as well as a stamped gas tube release lever, replacing the milled one. The bullet guide and bolt guide were also separated, with the bolt guide becoming a simple bump held in place on the left side of the receiver with an additional rivet (it's often called a "bump rivet" because of this) making it easier to replace in case of wear. Each AK-74M is fitted with a side-rail bracket for mounting optics that is a simplified version of the 74N mount with less machining cuts. The AK-74M would have been adopted by the Soviet Union as the standard service rifle, and has been accepted as the new service rifle of the Russian Federation."

name

"AK-74M universal upgrade kit"

notes

"An AK-74M universal upgrade kit consisting of a new safety, dust cover and furniture featuring improved ergonomics and rails to attach accessories like aiming optics, optoelectronic sights, laser sights, weapon lights and vertical fore grips and a new muzzle device had its official debut on May 9, 2015 in Moscow as part of the 2015 Moscow Victory Day Parade. The Kalashnikov Concern has further developed three sets of additional equipment for the modernization of 5.45×39mm and 7.62×39mm chambered AK-pattern assault rifles for normal military units, reconnaissance units, and special forces units.[46] The Kalashnikov Concern announced it has a contract with the Russian Ministry of Defence to deliver upgrade kits for their AK-74M assault rifles."

name

"AKS-74U"

notes

"In 1973, a design competition (codenamed "Modern"—Модерн) was started for the adoption of a fully automatic carbine. This was no doubt inspired by observing the US experience in Vietnam with the XM177. The Soviet planners also drew from the unsolicited design AO-46 built in 1969 by Peter Andreevich Tkachev, which weighed only 1.9 kg. The TTT specifications required a weight no greater than 2.2 kg (4.9 lb), a length of 75 cm (29.5 in)/45 cm (17.7 in) with the stock unfolded/folded, and an effective firing range of 500 m (547 yd). The competition was joined by designs of M.T. Kalashnikov (PP1), I.Y. Stechkin (TKB-0116), S.G. Simonov (AG-043), A.S. Konstantinov (AEK-958), and Yevgeny Dragunov (who called his model "MA"). Kalashnikov also presented an additional design (A1-75) which differed from PP1 by having a modified muzzle for flash and noise suppression.[49] In 1977, the GRAU decided to adopt Kalashnikov's model, which was largely a shortened AKS-74, because its performance was no worse than the competition, and promised significant production cost savings by utilizing existing equipment for the AK-74 line. A final round of large scale testing with Kalashnikov's model was performed by airborne divisions in the Transcaucasian Military District in March 1977. The AKS-74U ("U"—Russian: укороченный; Ukorochenniy, or "shortened") was officially adopted in 1979, and given the official, but seldom used GRAU designation 6P26. In 1993 production stopped."

name	"AK-101 variant of the AK-74M. "
notes	"5.56x45-mm (NATO) variant of the AK-74M. "

name	"AK-102 short-barrel (314-mm) variant of the AK-74M. "
notes	"5.56x45-mm (NATO) short-barrel (314-mm) variant of the AK-74M. "

name	"AK-103"
notes	"7.62x39-mm variant of the AK-74M."

name	"AK-104"
notes	"7.62x39-mm short- barrel (314-mm) variant of the AK-74M."

name	"AK-105"
notes	"5.45x39-mm short- barrel (314-mm) variant of the AK-74M."

type

"WEG"

version

1

@@ Line 11: / Line 11: @@
          "Rifles",
          "Assault Rifles",
+        "Russia (RUS)",
+        "PRO_Afghanistan",
+        "PRO_Armenia",
+        "PRO_Azerbaijan",
+        "PRO_Belarus",
+        "PRO_Bulgaria",
+        "PRO_Burundi",
+        "PRO_China",
+        "PRO_Cyprus",
+        "PRO_Egypt",
+        "PRO_Kazakhstan",
+        "PRO_Lesotho",
+        "PRO_Mongolia",
+        "PRO_Myanmar",
+        "PRO_Nigeria",
+        "PRO_North Korea (Democratic People's Republic of Korea)",
+        "PRO_Poland",
+        "PRO_Romania",
+        "PRO_Russian Federation",
+        "PRO_Somalia",
+        "PRO_Tajikistan",
+        "PRO_Ukraine",
+        "PRO_Viet Nam",
+        "Land",
          "Tier3"
      ],
-     "notes": "The AK-74 (Russian: Автомат Калашникова образца 1974 года or \"Kalashnikov automatic rifle model 1974\") is an assault rifle developed in the early 1970s by Russian weapons designer Mikhail Kalashnikov to replace the earlier AKM (itself a refined version of the AK-47). It uses a smaller 5.45×39mm cartridge, replacing the 7.62×39mm chambering of earlier Kalashnikov-pattern weapons.\n\nThe rifle first saw service with Soviet forces in the 1979 Afghanistan conflict.[8] The head of the Afghan bureau of the Pakistani Inter-Services Intelligence claimed that the CIA paid $5,000 for the first AK-74 captured by the Mujahideen during the Soviet–Afghan War.\n\nToday, the rifle is used by most countries of the former Soviet Union. Licensed copies were produced in Bulgaria (AK-74, AKS-74 and AKS-74U), and the former East Germany (MPi-AK-74N, MPi-AKS-74N, MPi-AKS-74NK).\n\nThe AK-74 was designed by А. D. Kryakushin's group under the design supervision of Mikhail Kalashnikov and is an adaptation of the 7.62×39mm AKM assault rifle and features several important design improvements.These improvements were primarily the result of converting the rifle to the intermediate-caliber high velocity 5.45×39mm cartridge. In fact, some early models are reported to have been converted AKMs, re-barreled to 5.45×39mm.Compared with the preceding AKM the AK-74 has better effective range, firing accuracy (a main development goal), and reliability. The AK-74 and AKM share an approximate 50% parts commonality (interchangeable most often are pins, springs and screws).\n\nThe rifle's operation during firing and reloading is identical to that of the AKM. After ignition of the cartridge primer and propellant, rapidly expanding propellant gases are diverted into the gas cylinder above the barrel through a vent near the muzzle. The build-up of gases inside the gas cylinder drives the long-stroke piston and bolt carrier rearward and a cam guide machined into the underside of the bolt carrier along with an ejector spur on the bolt carrier rail guide, rotates the bolt approximately 35° and unlocks it from the barrel extension via a camming pin on the bolt. The moving assembly has about 5.5 mm (0.2 in) of free travel which creates a delay between the initial recoil impulse of the piston and the bolt unlocking sequence, allowing gas pressures to drop to a safe level before the seal between the chamber and the bolt is broken. Like previous Kalashnikov-pattern rifles, the AK-74 does not have a gas valve; excess gases are ventilated through a series of radial ports in the gas cylinder. Since the Kalashnikov operating system offers no primary extraction upon bolt rotation, the 5.45×39mm AK-74 bolt has a larger extractor claw than the 7.62×39mm AKM for increased extraction reliability. Other minor modifications were made to the bolt and carrier assembly.\n\n\n\nSpecialized variants\nThe AK-74 is also available in several \"night-fighting\" configurations, equipped with a side-rail used to mount sights. These variants, the AK-74N, AKS-74N and AKS-74UN can be used in conjunction with NSPU and NSPU-3 (1PN51) night sights, as well as optical sights such as the USP-1 (1P29). The variants designated AK-74N2 and AKS-74N2 can use the multi-model night vision sight NSPUM (1PN58).[56] The AKS-74UB (\"B\"—Russian: бесшумный; Besshumniy or \"silent\") is a sound-suppressed variant of the AKS-74U adapted for use with the PBS-4 suppressor (used in combination with subsonic 5.45×39mm Russian ammunition). Very little is known about this model.",
+     "notes": "The AK-74 (Russian: Автомат Калашникова образца 1974 года or \"Kalashnikov automatic rifle model 1974\") is an assault rifle developed in the early 1970s by Russian weapons designer Mikhail Kalashnikov to replace the earlier AKM (itself a refined version of the AK-47). It uses a smaller 5.45×39mm cartridge, replacing the 7.62×39mm chambering of earlier Kalashnikov-pattern weapons.\n\nThe rifle first saw service with Soviet forces in the 1979 Afghanistan conflict. The head of the Afghan bureau of the Pakistani Inter-Services Intelligence claimed that the CIA paid $5,000 for the first AK-74 captured by the Mujahideen during the Soviet–Afghan War.\n\nToday, the rifle is used by most countries of the former Soviet Union. Licensed copies were produced in Bulgaria (AK-74, AKS-74 and AKS-74U), and the former East Germany (MPi-AK-74N, MPi-AKS-74N, MPi-AKS-74NK).\n\nThe AK-74 was designed by А. D. Kryakushin's group under the design supervision of Mikhail Kalashnikov and is an adaptation of the 7.62×39mm AKM assault rifle and features several important design improvements.These improvements were primarily the result of converting the rifle to the intermediate-caliber high velocity 5.45×39mm cartridge. In fact, some early models are reported to have been converted AKMs, re-barreled to 5.45×39mm.Compared with the preceding AKM the AK-74 has better effective range, firing accuracy (a main development goal), and reliability. The AK-74 and AKM share an approximate 50% parts commonality (interchangeable most often are pins, springs and screws).\n\nThe rifle's operation during firing and reloading is identical to that of the AKM. After ignition of the cartridge primer and propellant, rapidly expanding propellant gases are diverted into the gas cylinder above the barrel through a vent near the muzzle. The build-up of gases inside the gas cylinder drives the long-stroke piston and bolt carrier rearward and a cam guide machined into the underside of the bolt carrier along with an ejector spur on the bolt carrier rail guide, rotates the bolt approximately 35° and unlocks it from the barrel extension via a camming pin on the bolt. The moving assembly has about 5.5 mm (0.2 in) of free travel which creates a delay between the initial recoil impulse of the piston and the bolt unlocking sequence, allowing gas pressures to drop to a safe level before the seal between the chamber and the bolt is broken. Like previous Kalashnikov-pattern rifles, the AK-74 does not have a gas valve; excess gases are ventilated through a series of radial ports in the gas cylinder. Since the Kalashnikov operating system offers no primary extraction upon bolt rotation, the 5.45×39mm AK-74 bolt has a larger extractor claw than the 7.62×39mm AKM for increased extraction reliability. Other minor modifications were made to the bolt and carrier assembly.\n\n\n\nSpecialized variants\nThe AK-74 is also available in several \"night-fighting\" configurations, equipped with a side-rail used to mount sights. These variants, the AK-74N, AKS-74N and AKS-74UN can be used in conjunction with NSPU and NSPU-3 (1PN51) night sights, as well as optical sights such as the USP-1 (1P29). The variants designated AK-74N2 and AKS-74N2 can use the multi-model night vision sight NSPUM (1PN58).[56] The AKS-74UB (\"B\"—Russian: бесшумный; Besshumniy or \"silent\") is a sound-suppressed variant of the AKS-74U adapted for use with the PBS-4 suppressor (used in combination with subsonic 5.45×39mm Russian ammunition). Very little is known about this model.",
+    "dateOfIntroduction": 1974,
+    "countryOfOrigin": "Russia (RUS)",
+    "proliferation": "Afghanistan, Armenia, Azerbaijan, Belarus, Bulgaria, Burundi, China, Cyprus, Egypt, Kazakhstan, Lesotho, Mongolia, Myanmar, Nigeria, North Korea (Democratic People's Republic of Korea), Poland, Romania, Russian Federation, Somalia, Tajikistan, Ukraine, Viet Nam",
+    "selectedregions": [],
+    "checkedregions": [],
+    "checkedcountries": [
+        "Afghanistan",
+        "Armenia",
+        "Azerbaijan",
+        "Belarus",
+        "Bulgaria",
+        "Burundi",
+        "China",
+        "Cyprus",
+        "Egypt",
+        "Kazakhstan",
+        "Lesotho",
+        "Mongolia",
+        "Myanmar",
+        "Nigeria",
+        "North Korea (Democratic People's Republic of Korea)",
+        "Poland",
+        "Romania",
+        "Russian Federation",
+        "Somalia",
+        "Tajikistan",
+        "Ukraine",
+        "Viet Nam"
+    ],
      "dis": {
-         "name": "GL RFL 5.45MM AK74",
+         "name": "Unknown",
-         "string": "03.01.000.001.001.003.000"
+         "string": "00.00.000.000.000.000.000"
      },
      "images": [
-         "Russian 5.45x39mm Assault Rifle, AK-74_AK-74M.png",
+         "AK74ARif(B).jpg",
-        "AK-74_(A).jpg",
+         "AK74ARif(A).jpg"
-         "AK-74_(C).jpg"
      ],
      "sections": [
@@ Line 59: / Line 111: @@
                      "name": "Alternative Designation ",
                      "value": "AK, Kalashnikov"
-                },
-                {
-                    "name": "Date of Introduction",
-                    "value": "1974"
-                },
-                {
-                    "name": "Proliferation ",
-                    "value": "In approximately 21 different nations, primarily in Eastern Europe, and in Asia"
                  },
                  {
@@ Line 101: / Line 145: @@
                  {
                      "name": "Muzzle Velocity",
-                     "value": "880-900"
+                     "value": "880-900 m/s"
                  },
                  {