Caliber: 5.56mm NATO
Contour: Heavy Contour
Material: 4140 Chrome-Moly Steel
Chrome Lined: No
Gas System: Carbine
Muzzle Thread: Yes
Other: A2 Flash hider, A3 Forged Upper Receiver w/Teflon® Coating, GlacierGuards™ Handguards, Complete Bolt Carrier Assembly, Forged Front Sight Base w/Bayonet Lug
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