M4 — specifications, caliber, stats, review, photos | WeaponAtlas
The M4 is an American 5.56×45mm NATO carbine introduced in 1994 as a shortened member of the M16 family. It uses a gas-operated AR-15 pattern action, a 368 mm barrel, and detachable STANAG box magazines.
| Manufacturer | Colt's Manufacturing Company |
|---|---|
| Year introduced | 1994 |
| Caliber | 5.56×45mm NATO |
| Weight (unloaded) | 2.920 kg |
| Length | 838 mm |
| Barrel length | 368 mm |
| Magazine capacity | 30 rounds |