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  2. 5.56×45mm NATO - Wikipedia

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

    The corrected proof pressure requirement (service pressure (P max) + 25%) for the 5.56×45mm NATO like the STANAG 4172 is 537.3 MPa (77,929 psi) (PE) piezo pressure. This pressure has to be recorded in a NATO-design EPVAT barrel with Kistler 6215 transducer, [ 19 ] [ 20 ] HPI GP6 Transducer [ 21 ] or by equipment to C.I.P. requirements.

  3. 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 2017. [4]

  4. IWI Galil ACE - Wikipedia

    en.wikipedia.org/wiki/IWI_Galil_ACE

    The IWI Galil ACE, also marketed as IWI ACE (or simply ACE), is a series of assault rifles and battle rifles originally developed and manufactured by Israel Weapon Industries (IWI). It is produced in three different calibres: 5.56×45mm NATO, 7.62×39mm and 7.62×51mm NATO. IWI US also produced semi-automatic only variants of the Galil ACE.

  5. M4 carbine - Wikipedia

    en.wikipedia.org/wiki/M4_carbine

    The M4 carbine (officially Carbine, Caliber 5.56 mm, M4) is a 5.56×45mm NATO assault rifle developed in the United States during the 1980s. It is a shortened version of the M16A2 assault rifle. The M4 is extensively used by the US military , with decisions to largely replace the M16 rifle in US Army (starting 2010) and US Marine Corps ...

  6. M16 rifle - Wikipedia

    en.wikipedia.org/wiki/M16_rifle

    M16 internal piston action system. The M16 is a lightweight, 5.56 mm, air-cooled, gas-operated, magazine -fed assault rifle, with a rotating bolt. The M16's receivers are made of 7075 aluminum alloy, its barrel, bolt, and bolt carrier of steel, and its handguards, pistol grip, and buttstock of plastics.

  7. M27 Infantry Automatic Rifle - Wikipedia

    en.wikipedia.org/wiki/M27_Infantry_Automatic_Rifle

    The M27 Infantry Automatic Rifle (IAR) is a 5.56mm, select-fire assault rifle, based on the HK416 by Heckler & Koch. It is used by the United States Marine Corps (USMC) and is intended to be issued to all infantry riflemen as well as automatic riflemen. The USMC initially planned to purchase 6,500 M27s to replace a portion of the M249 light ...

  8. CETME Model L - Wikipedia

    en.wikipedia.org/wiki/CETME_Model_L

    The CETME Model L is a Spanish 5.56×45mm NATO assault rifle developed in the late 1970s at the state-owned small arms research and development establishment CETME (Centro de Estudios Técnicos de Materiales Especiales) located in Madrid. The rifle retains many of the proven design elements the institute had used previously in its CETME Model ...

  9. Leader Dynamics Series T2 MK5 - Wikipedia

    en.wikipedia.org/wiki/Leader_Dynamics_Series_T2_MK5

    The Leader T2 MK5 Series firearms were chambered for the 5.56×45mm NATO cartridge and manufactured by Leader Dynamics of Smithfield, NSW, Australia (1978-1982/1983). The Leader was the brainchild of British weapons designer Charles St. George. It was originally a contender for a 5.56 mm Australian military service rifle to replace the then ...