The Bone Rattler 16-inch AR-15 .223 Wylde Rifle Upper Build Kit from Davidson Defense is engineered for performance and reliability. Constructed with a 16-inch HBAR barrel made from 4150 CrMoV steel and finished with a phosphate coating, this upper is compatible with both .223 Remington and 5.56 NATO ammunition. The barrel features a 1:8 twist rate and a 1/2x28 thread pitch. The upper receiver is made from lightweight and durable 7075 T6 aluminum, anodized for added resilience, and includes M4 feed ramps for improved reliability. The kit also incorporates a black 6061-T6 aluminum quad-rail handguard for optimal accessory mounting and a low-profile gas block for reduced bulk. Completed with a Phase 5 Weapon Systems Inc Bushmaster Izzy flash hider, this build kit offers a robust and precise solution for gunsmiths who value freedom and performance in their AR-15 setups.
Caliber: .223 Wylde
Barrel Material: 4150 CrMoV
Barrel Length: 16-inch
Barrel Finish: Phosphate
Barrel Profile: HBAR
Barrel Twist Rate: 1:8
Barrel Thread Pitch: 1/2x28
Gas System: Carbine
Upper Receiver Material: 7075 T6 Aluminum
Upper Receiver Finish: Anodized
Upper Receiver Name: Stripped Upper Receiver with M4 Feed ramps
Handguard Material: 6061-T6 Aluminum
Handguard Color: Black
Handguard Style: Quad-Rail
Gas Block Size: 0.750
Gas Block Name: Recoil Technologies Micro Low-Profile Gas Block
Muzzle Device: Phase 5 Weapon Systems Inc Bushmaster Izzy Flash Hider
Muzzle Thread Pitch: 1/2x28
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