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| | M4 Carbine - Wikipedia, the free encyclopedia |
 | | Both the M4 and M4A1 carbines fire 5.56 x 45 mm NATO ammunition and are gas-operated, air-cooled, magazine-fed, selective fire firearms with a telescoping stock. |
 | | The M4A1 can be found in use by many U.S. military units, including the Delta Force, U.S. Navy SEALs, and the U.S. Marine Corps', U.S. Army Rangers, Radio Reconnaissance Platoons and Force Reconnaissance companies. |
 | | The kit features an M4A1 carbine, a Rail Interface System (RIS) handguard developed by Knight's Armament Company, a shortened quick-detachable M203 grenade launcher and leaf sight, a KAC sound suppressor, a KAC back-up rear sight, an Insight Technologies AN/PEQ-2A visible laser/infrared designator, along with Trijicon's ACOG and Reflex sights, and a night vision sight. |
| en.wikipedia.org /wiki/M4A1 (1866 words) |
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