List of 5.56×45mm NATO firearms

Many nations (both NATO and non-NATO members) use the 5.56 mm NATO cartridge in their rifles. Examples include:

• Argentina FARA 83
• Australian F88 Austeyr assault rifle and F89 Minimi machine gun. (ADI Thales also supplies ammunition)
• Austrian Steyr AUG and the Steyr ACR (Flechette) assault rifle
• Belgium: CAL, Minimi, FNC, SCAR, F2000.
• Bulgaria: Arsenal AD AR series
• Brazil: IMBEL MD2, LAPA FA-03
• Chinese QBZ-97, QBZ-03, CQ 5.56, QBB-97, KBU-97A
• Canadian Colt Canada C7 rifle, C8 rifle and the C9
• Croatia: HS Produkt VHS Assault rifle (VHS-K (short version) and VHS-D (long version))
• Czech Republic: CZ-805 BREN
• French: FAMAS
• Germany: HK33, HK53, HK13E, HK23E, G41, G36, MG4, HK416, RH-70
• Indian INSAS assault rifle
• Indonesian PINDAD SS1 and SS2 assault rifles
• Iranian Khaybar KH2002
• Israeli IMI Negev, IMI Galil assault rifle and Tavor TAR-21 bullpup assault rifle
• Italian AR70/90, Franchi mod. 641, SOCIMI AR-831
• Japanese Howa Type 89
• Malaysian VB Berapi LP06 assault rifle
• Mexican FX-05 Xiuhcoatl assault rifle
• Peruvian FAD assault rifle, Diseños Casanave SC-2005
• Philippine MSSR sniper rifle and Special Operations Assault Rifle (SOAR).
• Polish Kbk wz. 1996 Mini-Beryl and Beryl wz.96 assault rifles
• Russian AK-101, AK-102, AK-108 and KBP A-91
• Serbian M85/M90 and M21
• Singaporean SR-88 and SAR-21 assault rifles and Ultimax 100 machine gun
• South African Vektor R4 series of rifles and carbines, Truvelo Raptor, Vektor CR-21 assault rifle and Mini-SS machine gun
• South Korean K1, K2 assault rifles, and K3 machine gun
• Swedish Ak 5 system, derived from the Belgian FN FNC assault rifle
• Swiss SIG 530/540/550 series, with lesser performances than the round for which it was initially designed, the Gw Pat.90 cartridge
• Taiwan: T65 Assault Rifle, T86 assault rifle and T91 Assault Rifle.
• Thailand: Rung Paisarn RPS-001
• Turkish Safir T-15 and Safir T-17
• United Kingdom: Sterling SAR-87, SA80 series rifles.
• US M16 rifle series, M4 Carbine, US/German HK-416, US/Belgian M249 Squad Automatic Weapon, and US/Belgian Mk. 16 SCAR-L

Examples of rifles marketed for non-military applications that can take the 5.56 cartridge include:

• Bushmaster_ACR assault rifle
• Kel-Tec SU-16 series semi-automatic rifles
• Saiga semi-automatic rifle Saiga 223 semi-automatic rifle
• Remington Model 7615 Police Patrol Rifle
• Remington Model 700 series bolt-action rifle
• Ruger Mini-14 semi-automatic rifle
• Steyr Scout series bolt-action rifle
• Winchester Model 70 series bolt-action rifle
• Volquartsen Evolution autoloading competition/varmint rifle
• Smith & Wesson M&P15 semi automatic ar-15 assault rifle
• Bushmaster_Firearms_International#Carbon_15 semi automatic carbon polymer based ar-15 assault rifle