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  2. 5.56×45mm NATO - Wikipedia

    en.wikipedia.org/wiki/5.56×45mm_NATO

    The 5.56×45mm NATO SS109/M855 cartridge (NATO: SS109; U.S.: M855) with standard 62 gr. lead core bullets with steel penetrator will penetrate about 38 to 51 cm (15 to 20 in) into soft tissue in ideal circumstances. As with all spitzer shaped projectiles, it is prone to yaw in soft tissue.

  3. Adcor A-556 - Wikipedia

    en.wikipedia.org/wiki/Adcor_A-556

    Rotating bolt, selective fire. Muzzle velocity. 2,800 ft/s (850 m/s) (5.56 mm from a 14.5 in barrel) Feed system. STANAG-compliant magazine. The ADCOR A-556 is an assault rifle based on the M16/M4 series. It is produced by the Adcor Defense Company and was one of the contenders in the US Army Individual Carbine Competition to replace the M4 ...

  4. List of military headstamps - Wikipedia

    en.wikipedia.org/wiki/List_of_military_headstamps

    The ammunition was bulk-packed in standard 20-round cartons without stripper clips to maximize the amounts delivered and the packaging was marked in the Chinese language. In 1944 there was a contract to make 30-million modified Springfield-type Mauser-compatible stripper clips which were bulk-packed in ammo cans. Due to the long transport times ...

  5. List of AR platform cartridges - Wikipedia

    en.wikipedia.org/wiki/List_of_AR_platform_cartridges

    22 Grendel (wildcat) aka 224 Grendel. .22 Nosler. .22 PPC. .22 ARC. .222 Remington (sometimes chambered in countries where ownership of military cartridges is illegal) .223 Remington – Original AR-15 cartridge: .223 cartridges may function in a 5.56×45mm rifle, however 5.56×45mm cartridges may produce excessive pressure in a .223 Rem rifle.

  6. Ruger SR-556 - Wikipedia

    en.wikipedia.org/wiki/Ruger_SR-556

    The SR-556 is a semi-automatic AR-15 style rifle manufactured by Sturm, Ruger & Co. The rifle was introduced in 2009 in .223 Remington / 5.56×45mm NATO and as a .308 Winchester AR-10 variant in 2013, the SR-762. [4] It is one of several AR-15 rifles to use a gas piston operation.

  7. Haenel MK 556 - Wikipedia

    en.wikipedia.org/wiki/Haenel_MK_556

    The Haenel MK 556 [2] (German: Maschinenkarabiner) [3] is a gas-operated selective-fire 5.56×45mm NATO assault rifle designed by German company C.G. Haenel. The MK556 was finalised in September 2020, and it is a fully automatic version of an earlier Haenel design, the CR 223, which was already in limited use by law enforcement agencies since ...

  8. Ruger AR-556 - Wikipedia

    en.wikipedia.org/wiki/Ruger_AR-556

    The Ruger AR-556 is a semiautomatic AR-15 style rifle manufactured by U.S. firearms company Sturm, Ruger & Co. Introduced in 2014 as an entry-level AR-15 using a direct impingement action, with variants since being released such as the upgraded AR-556 MPR (multi-purpose rifle) in 2017 [1] and the AR-556 pistol in 2019.

  9. Ares Shrike 5.56 - Wikipedia

    en.wikipedia.org/wiki/Ares_Shrike_5.56

    The Ares Defense Shrike 5.56 is an air-cooled, dual-feed rifle for semi or full-auto configurations that fires the 5.56×45mm NATO cartridge. The Shrike 5.56 can be supplied as a complete weapon, or as an upper receiver “performance upgrade kit” to existing M16-type service rifles and carbines. it is named after the Shrike, a carnivorous passerine bird, and was designed by Geoffrey Herring.