Product Description
TheDD-15A4 20-inch AR-15 5.56 NATO Rifle Full Build Kit from MCSprovides all the essential components needed for a complete firearm assembly. This kit includes a 20-inch HBAR barrel made from durable 4150 CrMoV steel with a nitride finish, featuring a 1:7 twist rate and standard rifle gas system. The upper receiver is crafted from 7075-T6 aluminum with an anodized finish, ensuring strength and longevity. The assembly comes with a Mil-Spec AR-15 M4 charging handle, and a complete 9310 alloy steel bolt carrier group, finished with nitride for reliability. The kit includes a synthetic fixed A2 stock and a rifle-length aluminum drop-in quad rail handguard, both in black. Completing the build is an AR-15 birdcage flash hider that features a 1/2×28 thread pitch and manganese phosphate finish. This full build kit is engineered for precision and reliability, perfect for any gunsmith who values freedom.
Specifications
Caliber:5.56x45mm NATO
Barrel Material:4150 CrMoV
Barrel Length:20-inch
Barrel Finish:Nitride
Barrel Profile:HBAR
Barrel Twist Rate:1:7
Barrel Gas System:Rifle
Upper Receiver Material:7075-T6 Aluminum
Upper Receiver Finish:Anodized
Charging Handle:Mil-Spec AR-15 M4 Charging Handle
Bolt Carrier Material:9310 Alloy Steel
Bolt Carrier Finish:Nitride
Bolt Carrier Name:AR-15 5.56/.223/.300/.350 Complete Bolt Carrier Group
Rifle Stock:A2 Stock, Synthetic Fixed Stock
Handguard Material:Aluminum
Handguard Color:Black
Handguard Style:Rifle Length Drop-In Quad Rail
Muzzle Device:AR-15 1/2×28 TPI GI Birdcage Flash Hider
Muzzle Thread Pitch:1/2×28
Muzzle Device Finish:Manganese Phosphate
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