M4

Last crawled date: 5 years, 2 months ago

The M4 Carbine is a family of firearms tracing its lineage back to earlier carbine versions of the M16, all based on the original AR-15 made by ArmaLite. The weapon is a shorter and lighter version of the M16A2 assault rifle, achieving 80% parts commonality with the M16A2. The M4 has selective fire options including semi-automatic and three-round burst (like the M16A2), while the M4A1 has a 'full auto' option in place of the three-round burst. The M4A1 is sometimes also found with a heavier barrel to withstand heat from sustained fully-automatic fire. #gun #m16 #M4 #rifle