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31 Cards in this Set

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What is the description of the gau 21

Short recoil operated, air cooled automatic weapon firing .50 cal ammunition from the open bolt position and provides medium range suppressive fire.

Overall length of the gun

66.5 in

How much does the weapon weigh

80lbs

Height of the weapon

6.3in

Width of the weapon

3.9in

Barrel length

36 in

Barrel weight

11lb

Rifling length inside the barrel

31.9in

Number of grooves

8

Number of grooves

8

Twist direction

Right handed

NATO

Twist (one turn in)

15in

Rate of fire

950-1100rpm


1025 +- 75

Muzzle velocity

2887fps

Muzzle velocity

2887fps

Max range

6500m

Muzzle velocity

2887fps

Max range

6500m

Max effective

1850

Max air to air 1/2 TOF

373m

NTRP

Max air to air 1 TOF

679m

Max air to air 1 TOF

679m

Tracer burnout

1100m

Barrel cooling/firing limitations

300 rounds - 2 minutes


600 rounds - 7 minutes


900 rounds - 7 minutes


1200rounds- 7 minutes

Barrel cooling/firing limitations

300 rounds - 2 minutes


600 rounds - 7 minutes


900 rounds - 7 minutes


1200rounds- 7 minutes

What is required after firing 1200 rounds

Barrel erosion gauge (check)

When is a 600 round burst authorized

NEVER

When is a 600 round burst authorized

NEVER

When is a 300 round burst authorized

Combat only

When is a 600 round burst authorized

NEVER

When is a 300 round burst authorized

Combat only