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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. 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 ...

  5. List of 5.56×45mm NATO firearms - Wikipedia

    en.wikipedia.org/wiki/List_of_5.56×45mm_NATO...

    The table below gives a list of firearms that can fire the 5.56×45mm NATO cartridge, first developed and used in the late 1970s for the M16 rifle, which to date, is the most widely produced weapon in this caliber. [1] Not all countries that use weapons chambered in this caliber are in NATO. This table is sortable for every column.

  6. AK-12 - Wikipedia

    en.wikipedia.org/wiki/AK-12

    They can be chambered in 5.45×39mm, 5.56×45mm NATO and 7.62×39mm, and use a barrel and gas system assembly and iron sights line similar to that of the AK-74M/AK-100 rifle family. AK-12 alike improvements added include Picatinny rails, a new pistol grip, a new adjustable buttstock and a new flash hider. [ 48 ]

  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. 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.