The Brass Collar 8-inch AR-15 .45 ACP Pistol Upper Build Kit from Davidson Defense is engineered for performance and reliability. This kit includes a billet 6061-T6 aluminum upper receiver with a Type III hardcoat anodized finish, ensuring durability and strength. The assembly features an 8-inch barrel made from 4150 Chrome Moly Vanadium (CrMoV) steel, offering a medium profile with a nitride finish for enhanced corrosion resistance. The barrel twist rate is 1:16, and it has a thread pitch of .578x28, allowing for various muzzle devices to be fitted. Complementing the design, the 7-inch M-LOK free float handguard is constructed from aircraft-grade aluminum and finished in black anodized for a sleek appearance.
Platform: AR-15
Caliber: .45 ACP
Barrel Length: 8 inches
Barrel Material: 4150 Chrome Moly Vanadium (CrMoV)
Barrel Twist Rate: 1:16
Barrel Finish: Nitride
Barrel Thread Pitch: .578x28
Barrel Profile: Medium
Upper Receiver Material: Billet 6061-T6 Aluminum
Upper Receiver Finish: Type III Hardcoat Anodized
Handguard Length: 7 inches
Handguard Material: Aircraft-Grade Aluminum
Handguard Color: Black
Handguard Finish: Anodized
Handguard Style: M-LOK, Free Float
Muzzle Thread Pitch: .578x28
Muzzle Device Finish: Phosphate
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