M27 IAR — specifications, caliber, stats, review, photos | WeaponAtlas
The M27 IAR is an American 5.56×45 mm NATO automatic rifle introduced in 2010 for the U.S. Marine Corps. It is based on the HK416, uses a short-stroke gas-operated system, and feeds from detachable STANAG magazines.
| Manufacturer | Heckler & Koch |
|---|---|
| Year introduced | 2010 |
| Caliber | 5.56×45mm NATO |
| Weight (unloaded) | 7.900 kg |
| Length | 946 mm |
| Barrel length | 420 mm |
| Magazine capacity | 30 rounds |
| Muzzle velocity | 2900 m/s |
| Effective range | 550 m |