300 Blackout AR-15 Complete Upper 10.5" Heavy Barrel
300 Blackout AR-15 Complete Upper 10.5' Heavy Barrel

300 Blackout AR-15 Complete Upper 10.5" Heavy Barrel

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Part Number:636-UA300PHB10.518P-10M3

Considered by some to be the American answer to 7.62x39, 300 Blackout has been modified to use the same magazines and bolt as the common 5.56 NATO. 300 Blackout allows for shooting of various grain weights and performs exceptionally with subsonic ammo and suppressors.


More Information
SKU636-UA300PHB10.518P-10M3
Weight4.400000
Length10.5
ProfileHeavy Barrel
Twist1:8
FinishParkerized
Material4150 Chrome Moly Vanadium
Thread Pitch5/8 x 24
Caliber.300 Blackout
Feed Ramp.300 Blackout
FlutesNone
Gas SystemPistol
Gas Block System0.750
Gas Hole Diameter0.125
Charging StyleRear Charging
ClassificationComplete Upper Assembly
PlatformAR-15
ThreadedThreaded

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