CODE 03-041-003

NAME – M27 Infantry Automatic Rifle

NAME (COMMON) – M27 IAR

COUNTRY OF ORIGIN – Germany

DATE OF MANUFACTURE – 2010

CALIBER – 5.56x45mm NATO

OVERALL LENGTH – 85.5 cm (33.66 in) Stock collapsed, 95.1 cm (37.44 in) Stock extended

BARREL LENGTH – 41.9 cm (16.5 in)

RIFLING (TYPE & TWIST) – 6 Grooves, Right-hand twist, 1 turn in 17.8 cm (7 in)

LOAD – SS109/M855 Ball Full metal jacket with steel core penetrator

BULLET DIAMETER – 5.69 mm (0.224 in)

BULLET WEIGHT – 4.02 g (62 grains)

MUZZLE VELOCITY – 928 m/s (3045 fps)

MUZZLE ENERGY – 1731 j (1277 ft/lb)

WEIGHT (EMPTY) – 3.53 kg (7 lb 13 oz) with sling

WEIGHT (LOADED) – 4.14 kg (9 lb 2 oz) with sling, loaded with 30 rounds M855 ball

SIGHTS – Removable Picatinny rail along top and sides of weapon for iron, optical and electronic sights and aiming/indicating devices

EFFECTIVE RANGE – 500 m (547 yards)

OPERATION – Gas, short-stroke piston, fires from closed bolt

TYPE OF FIRE – Selective, semi and full automatic

RATE OF FIRE – 40 rpm Semi, 90 to 120 rpm full automatic

CYCLIC ROF – 850 rpm

FEED DEVICE – 30-round removable steel box magazine, double column, double feed, may use all STANAG 4179 (M16-type) feed devices.

FEED DEVICE WEIGHT (EMPTY) – 0.24 kg (8.5 oz)

FEED DEVICE WEIGHT (LOADED) – 0.61 kg (1 lb 5.5 oz)

BASIC AMMUNITION LOAD – Six-30-round magazines (180 rounds)

LOAD WEIGHT – 3.66 kg (8 lb 1 oz)

MANUFACTURER – Heckler & Koch GmbH, Oberndorf/Neckar, Germany

STATUS – Production

SERVICE – USMC and additional military forces