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AR-15 12.7x42 18" Parkerized Heavy Barrel | 1:20 Twist | Mid-Length Gas System
Length: 18"
Material: 4150 Chrome Moly Vanadium
Profile: Bull
Thread Pitch: 49/64 x 20
Gas System: Mid
Gas Block: .936
Twist Rate: 1:20
Feed Ramp: Single
Weight: 2.75lb