The Armed Forces started using this weapon in the 1960s, approximately at the same time as HK416. It is gas driven, semi-automatic and equipped with picatinny rails.
Manufacturer: Heckler & Koch, Germany
Length: 1,005 – 1,085 mm
Weight, unloaded: 4.6 kg (10 pounds 2 ounces)
Calibre: 7.62 x 51 mm
Magazine capacity: 10–20
Muzzle velocity: 850 m/s
Rate of fire: 10–20 shots per minute (precision) / 60–80 shots per minute (suppressive fire)