Country: USA
Caliber :5.56mm
weapon length: 980mm
barrel length: 507mm
weight: 2,940 kg empty 3,260 with loaded magazine at 30 shots
initial velocities of the projectile: 975 m/s
Rate of fire :750 to 900 strokes/min
supply :20 or 30 round magazine
commissioning :1967
operating system :use of gases without rotary locking piston of the cylinder head
number and direction of scratches :4 right
no scratches :305mm
practical range 200m max 800m (theory)