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SKU: GAG_AS-55DC70A
CMMG INC. MT BARREL SUB-ASSEMBLY 5.56 NATO Features and Specifications: Manufacturer Number: 55DC70A 5.56mm NATO (Accepts .223 Remington) 1:7 Twist Rate 16.1 Barrel Length Medium Taper Profile Mid-Length Gas Port Location .750 Gas Block Size 4140 Chrome-Moly Salt Bath Nitride Finish Muzzle Threaded 1/2 x 28 TPI