.300 AAC Blackout

.300 Blackout

Subsonic and supersonic AR-15 caliber, designed for suppressed use

Bullet Diameter
0.308"
Typical Platforms
ar15
Uses same bolt as 5.56, requires different barrel and magazines

Barrels

Rifled tubes that guide the projectile

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Bolt Carrier Groups

The heart of the AR action

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Magazines

Feed devices for ammunition

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Muzzle Devices

Flash hiders, brakes, and compensators

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