The Knightfall 18-inch Rifle-Gas 5.56 NATO AR-15 Upper Build Kit from Davidson Defense is crafted for precision and durability. This kit includes an 18-inch Government Profile Barrel made from 4140 Gun Steel, with a nitride finish, 1:7 twist rate, and 1/2x28 thread pitch for compatibility with standard muzzle devices. Built for reliable performance, it features a full-length rifle gas system and a micro low-profile gas block optimized for .750 O.D. barrels.
The 7075-T6 aluminum upper receiver is anodized for added protection and includes M4 feed ramps. The extended 15-inch KeyMod free float handguard, made from 6061-T6 aluminum, provides a lightweight yet robust platform. This upper build kit is fully compatible with AR-15 lower receivers, making it an excellent choice for gunsmiths and enthusiasts seeking quality components built for freedom.
Platform: AR-15
Caliber: 5.56x45mm NATO
Barrel Length: 18-inch
Barrel Profile: Government
Barrel Twist Rate: 1:7
Barrel Material: 4140 Gun Steel
Barrel Finish: Nitride
Barrel Thread Pitch: 1/2x28
Barrel Gas System Length: Rifle
Upper Receiver Material: 7075-T6 Aluminum
Upper Receiver Finish: Anodized
Gas Block Size: 0.75
Muzzle Device Name: AR-15 1/2x28 TPI GI Birdcage Flash Hider
Muzzle Thread Pitch: 1/2x28
Handguard Material: 6061-T6 Aluminum
Handguard Length: 15-inch
Handguard Style: KeyMod
To view the most up-to-date shipping times Click HERE. To view Warranty, Returns, Terms & Restrictions Click HERE.
