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19 Cards in this Set
- Front
- Back
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Describe the GAU-21 |
Short recoil operated, automatic weapon, fired from the open bolt position |
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Barrel length |
36 in |
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Barrel weight |
11 pounds |
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How many times is it rifled? |
8, in a clockwise direction |
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Rate of fire |
1025 +/- 75 (950-1100) |
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Length? |
66.5 in |
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Width |
3.9 in |
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Height |
6.3 in |
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Muzzle velocity |
2887 fps |
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Max effective |
1850 m |
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Max range |
6500 m |
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Tracer burnout |
1100 m |
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2 phases of firing? |
Counter recoil and recoil |
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Steps of counter recoil? |
Feeding Chambering Locking Firing |
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Steps of recoil |
Unlocking Extracting Ejecting Cocking |
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Types of .50 cal ammo |
Ball Dummy Tracer Incendiary Armor piercing Armor piercing incendiary Armor piercing incendiary tracer Armor piercing he incendiary tracer |
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Headspace? |
.202-.208 |
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Burst length/cooling time |
1.5 secs burst = 30 secs cooling 3 secs burst = 1 min cooling 6 secs burst = 2 min 30 sec cooling |
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Major assemblies |
Back plate Barrel buffer assembly Breech bolt assembly Receiver assembly Barrel assembly Barrel jacket Feed cover assembly Auxiliary return springs |
