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 M4A1 is a fully automatic variant of the M4 carbine – a shorter and lighter variant of the M16. It went into service in 1994 to replace the M16 in certain roles. The M4A1 trigger group operates on either Safe, Semi-Automatic, or Fully Automatic settings.

The M4A1 Carbine is a shortened version of the M16A2 assault rifle manufactured by Colt. The M4A1 is a favorite amongst US Special Operations Forces. The M4A1 variant comes with a safe / semi-auto / automatic trigger groups as apposed to the safe / semi-auto / 3-round burst configuration found on standard M4s.

2023年9月29日 · The M4 carbine is arguably the best all-around fighting rifle ever made, so here we’re looking at exactly how it came to be. Officially adopted in 1994, the M4 carbine has only been gaining steam on the global stage ever since.

2024年4月24日 · Meet the M4 Carbine: Over the course of many years, the U.S. produced hundreds of thousands of battle-tested, upgraded M4A1 rifles engineered to more quickly identify, attack, and destroy enemy targets with full auto-capability, …

2006年7月1日 · The M4 carbine is a lightweight (5.9 pounds unloaded), gas operated, air cooled carbine capable of semi-automatic and burst fire (auto for the M4A1). Nearly 25% of the components of the M4 are not interchangeable with the M16A2, M16A3 and M16A4 rifles.

2023年6月4日 · The M4 Carbine is a shorter and lighter version of the Colt M16A2 assault rifle, with 80% of parts commonality. The rifle has selective fire options, including semi-automatic and three-round bursts (like the M16A2), while the M4A1 …