# List of 5.56×45mm NATO firearms

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. Not all countries that use weapons chambered in this caliber are in NATO.
This table is sortable for every column.
| Name | Type | Country | Years of service | Notes |
| FARA 83 | Assault rifle | Argentina | 1984–present | |
| F88 Austeyr | Bullpup assault rifle | Australia | 1985–present | Licensed copy of the Steyr AUG. |
| EF88 Austeyr | Bullpup assault rifle | Australia | 2015–present | Upgraded version of the F88 Austeyr. |
| F89 LSW | Light machine gun | Australia | 1989–present | Licensed copy of the FN Minimi. |
| Omark Model 44 | Bolt action target rifle | Australia | 1968 | |
| Steyr AUG | Bullpup assault rifle | Austria | 1978–present | |
| Steyr Scout | Bolt action sniper rifle | Austria | 1999–present | |
| FN CAL | Assault rifle | Belgium | 1966–1975 | |
| FN FNC | Assault rifle | Belgium | 1979–present | |
| FN F2000 | Bullpup assault rifle | Belgium | 2001–present | |
| FN SCAR-L | Assault rifle | Belgium | 2009–present | Also produced in the U.S. |
| FN Minimi | Light machine gun | Belgium | 1974–present | |
| IMBEL MD | Assault rifle | Brazil | 1985–present | |
| IMBEL IA2 | Assault rifle | Brazil | 2012–present | |
| AR-M1 | Assault rifle | Bulgaria | 2000–present | |
| Colt Canada C7 | Assault rifle | Canada | 1984–present | |
| Colt Canada C8 | Carbine | Canada | 1994–present | |
| Colt Canada C9 | Light machine gun | Canada | 1980s–present | Licensed copy of the FN Minimi. |
| Norinco CQ | Assault rifle | China | 1980s-present | Unlicensed copy of the M16 rifle. |
| QBZ-97 | Bullpup assault rifle | China | 1997–present | 5.56×45mm NATO variant of QBZ-95. |
| Norinco AK-2000 | Assault rifle | China | 2000s-present | Copy of the AK-101. |
| QBZ-03 | Assault rifle | China | 2003–present | Export variant is chambered in 5.56×45mm NATO. |
| QBU-97A | Semi-automatic bullpup sniper rifle | China | 1997–present | 5.56×45mm NATO variant of QBU-88. |
| Galil Córdova | Assault rifle | Colombia | 2015–present | |
| SIG SG 530 FAMAE | Assault rifle | Chile | 1991–present | Chilean version of SIG SG 540. |
| HS Produkt VHS | Assault rifle | Croatia | 2009–present | |
| ČZ 2000 | Assault rifle | Czechoslovakia | Designed in 1990s | Also available as light machine gun and carbine. |
| CZ 805 BREN | Assault rifle | Czech Republic | 2011–present | |
| Wieger StG-940 | Assault rifle | East Germany | 1985–1990 | |
| FAMAS | Bullpup assault rifle | France | 1978–present | |
| Heckler & Koch HK33 | Assault rifle | Germany | 1968–present | |
| Heckler & Koch G41 | Assault rifle | Germany | 1984–present | |
| Heckler & Koch G36 | Assault rifle | Germany | 1997–present | |
| Heckler & Koch HK416 | Assault rifle | Germany | 2004–present | |
| Haenel MK 556 | Assault rifle | Germany | 2017–present | |
| Heckler & Koch HK43 | Semi-automatic rifle | Germany | 1974–1989 | Civilian version of Heckler & Koch HK33. |
| Heckler & Koch SL6 | Semi-automatic rifle | Germany | 1980s-1991 | |
| Heckler & Koch SL8 | Semi-automatic rifle | Germany | 1998–present | Civilian version of Heckler & Koch G36. |
| SIG Sauer SIG516 | Semi-automatic rifle | Germany | 2010–present | |
| Heckler & Koch HK23E | General-purpose machine gun | Germany | 1980s-present | A magazine-fed variant, the HK13E, was also produced. |
| Heckler & Koch MG4 | Light machine gun | Germany | 2005–present | |
| INSAS rifle | Assault rifle | India | 1998–present | |
| Excalibur rifle | Assault rifle | India | 2017–present | |
| Pindad SS1 | Assault rifle | Indonesia | 1991–present | Licensed copy of the FN FNC. |
| Pindad SS2 | Assault rifle | Indonesia | 2006–present | |
| Pindad AM1 | Carbine | Indonesia | 2022 | Indonesian version of M4 carbine |
| Pindad SPM-1 | Semi-automatic rifle | Indonesia | 2016–present | |
| Pindad SM3 | Light machine gun | Indonesia | 2006–present | Licensed copy of the FN Minimi. |
| Komodo Armament D5 | Assault rifle | Indonesia | 2014–present | |
| IFAR 22 | Bullpup assault rifle | Indonesia | Designed in 2022–present | |
| KH-2002 | Bullpup assault rifle | Iran | 2003–2012 | |
| Fateh rifle | Assault rifle | Iran | 2014–present | |
| Masaf 5,56 | Assault rifle | Iran | 2017–present | Iranian version of HK416 and M4 carbine. |
| IMI Galil | Assault rifle | Israel | 1972–present | |
| IWI Tavor | Bullpup assault rifle | Israel | 2001–present | |
| IWI Galil ACE | Assault rifle | Israel | 2008–present | |
| IWI Tavor X95 | Bullpup assault rifle | Israel | 2009–present | |
| IWI ARAD | Carbine | Israel | 2019–present | |
| IWI Negev | Light machine gun | Israel | 1997–present | |
| Beretta AR70/90 | Assault rifle | Italy | 1990–present | |
| Beretta ARX160 | Assault rifle | Italy | 2008–present | |
| Beretta AS70/90 | Light machine gun | Italy | Designed in 1980s | |
| Howa Type 89 | Assault rifle | Japan | 1989–present | |
| Sumitomo Minimi | Light machine gun | Japan | 1975–present | Japanese version of FN Minimi. |
| Howa Type 20 | Assault rifle | Japan | 2020–present | |
| VB Berapi LP06 | Bullpup assault rifle | Malaysia | Designed in 2006 | |
| FX-05 Xiuhcoatl | Assault rifle | Mexico | 2008–present | |
| SAX-200 Xiuhcoatl | Submachine gun | Mexico | 2023–present | |
| Special Operations Assault Rifle | Assault rifle | Philippines | 2004–present | Based on the M4 carbine. |
| Marine Scout Sniper Rifle | Semi-automatic sniper rifle | Philippines | 1996–present | |
| PVAR Rifle | Assault rifle | Philippines | 2011–present | |
| FB Beryl | Assault rifle | Poland | 1997–present | |
| FB Mini-Beryl | Carbine assault rifle | Poland | 1997–present | |
| FB MSBS Grot | Assault rifle | Poland | 2017–present | |
| Kbkm wz. 2003 | Light machine gun | Poland | Designed in 2000s | |
| A-91 | Bullpup assault rifle | Russia | 1990–present | |
| AK-108 | Assault rifle | Russia | 1994–present | 5.56mm variant of the AK-107. |
| AK-101 | Assault rifle | Russia | 1995–present | |
| AK-102 | Carbine assault rifle | Russia | 1995–present | |
| AK-19 | Assault rifle | Russia | 2020–present | 5.56mm variant of the AK-12. |
| Saiga semi-automatic rifle | Semi-automatic rifle | Russia | 1990s-present | Designed for the civilian market. |
| Zastava M80 | Assault rifle | Yugoslavia Serbia | 1980–present | |
| Zastava M85 | Carbine assault rifle | Yugoslavia Serbia | 1985 | |
| Zastava M90 | Assault rifle | Yugoslavia Serbia | 1990–present | |
| Zastava M21 | Assault rifle | Serbia | 2004–present | Serbian issue AK variant. |
| SAR 80 | Assault rifle | Singapore | 1976–present | |
| SR 88 | Assault rifle | Singapore | 1984–2000 | |
| SAR 21 | Bullpup assault rifle | Singapore | 1999–present | |
| BR18 | Assault rifle | Singapore | 2014–present | |
| Ultimax 100 | Light machine gun | Singapore | 1982–present | |
| Vektor R4 | Assault rifle | South Africa | 1980–present | Licensed variant of the IMI Galil. |
| Vektor CR-21 | Bullpup assault rifle | South Africa | Designed in 1997 | Prototype – never entered service. |
| Vektor Mini-SS | Light machine gun | South Africa | 1986–present | |
| Daewoo Precision Industries K1 | Carbine assault rifle | South Korea | 1981–present | Although the design is very similar to the carbine, it is officially classified as a submachine gun in the South Korean military. |
| Daewoo Precision Industries K2 | Assault rifle Carbine | South Korea | 1985–present | There are two variants, K2C, a carbine version with a short barrel, and K2C1, modified with modern specifications. |
| S&T STC-16 | Carbine assault rifle | South Korea | 2016–present | Based on the AR-15 Carbine with some modification. |
| Dasan Machineries K16 | Assault rifle | South Korea | 2018–present | Based on the M4 carbine and HK 416. |
| S&T Daewoo K11 | Bullpup assault rifle | South Korea | 2010–present | Also fitted with grenade launcher. |
| Daewoo Precision Industries K3 | Light machine gun | South Korea | 1991–present | |
| CETME Model L | Assault rifle | Spain | 1987–1999 | |
| CETME Ameli | Light machine gun | Spain | 1982–present | |
| FFV 890 | Assault rifle | Sweden | 1975–present | Based on the IMI Galil. |
| Ak 5 | Carbine assault rifle | Sweden | 1986–present | Licensed copy of the FN FNC. |
| Ksp 90 | Light machine gun | Sweden | 1990–present | Licensed copy of the FN Minimi. |
| SIG SG 530 | Assault rifle | Switzerland | 1960s-1970s | |
| SIG SG 540 | Assault rifle | Switzerland | 1977–present | |
| SIG SG 550 | Assault rifle | Switzerland | 1990–present | |
| SG 552 Commando | Carbine | CHE | 1990–present | |
| SIG Sauer SIG516 | Carbine assault rifle | CHE | 2010–present | |
| B&T APC 556 | Carbine assault rifle | CHE | 2011–present | |
| MPT-55 | Assault rifle | TUR | 2014–present | |
| KCR-556 | Assault rifle | TUR | 2018–present | |
| T65 assault rifle | Assault rifle | Taiwan | 1976–present | |
| T86 assault rifle | Assault rifle | Taiwan | 2000–present | |
| T91 assault rifle | Assault rifle | Taiwan | 2003–present | |
| XT-97 Assault Rifle | Assault rifle | Taiwan | Designed in 2008 | |
| T75 light machine gun | Light machine gun | Taiwan | 1992–present | Unlicensed variant of the FN Minimi. |
| Sterling SAR-87 | Assault rifle | United Kingdom | Designed in 1980s | |
| SA80 | Assault rifle | United Kingdom | 1985–present | Also available as a light support weapon and carbine. |
| ArmaLite AR-15 | Assault rifle | United States | 1962–1963 | |
| Stoner 63 | Assault rifle | United States | 1963–1983 | Also available as light machine gun and carbine. |
| M16 rifle | Assault rifle | United States | 1964–present | |
| ArmaLite AR-18 | Assault rifle | United States | 1969–present | |
| ArmaLite AR-100 | Assault rifle | United States | | Based on the ArmaLite AR-16. Also available as light machine gun and carbine. |
| M4 carbine | Carbine assault rifle | United States | 1994–present | |
| LWRC M6 | Carbine assault rifle | United States | 2006–present | |
| Robinson Arms XCR | Assault rifle | United States | 2006–present | |
| M27 Infantry Automatic Rifle | Assault rifle | United States | 2010–present | Based on the Heckler & Koch HK416. Also available as a light support weapon and designated marksman rifle. |
| Remington ACR | Assault rifle | United States | 2010–present | |
| SIG MCX | Assault rifle | United States | 2015–present | |
| Desert Tech MDR | Bullpup Assault rifle Semi-automatic rifle | United States | 2017–present | |
| Mk 12 Special Purpose Rifle | Designated marksman rifle | United States | 2002–2017 | |
| Ruger Mini-14 | Semi-automatic rifle | United States | 1973–present | Saw limited usage by police and military units as the fully-automatic AC556. |
| Smith & Wesson M&P15 | Semi-automatic rifle | United States | 2006–present | |
| Kel-Tec SU-16 | Semi-automatic rifle | United States | 2000s-present | Designed for the civilian market. |
| XM214 Microgun | Rotary-barrel machine gun | United States | 1970s–1990s | Scaled down version of the M134 Minigun. |
| M249 light machine gun | Light machine gun | United States | 1984–present | Derived from the FN Minimi. |
| Colt Automatic Rifle | Light machine gun | United States | 1994–present | Derived from the M16 rifle. |