This blemished AR-9 upper build kit from Davidson Defense delivers a compact 8.3-inch barrel with a 1:10 twist rate optimized for 9MM performance. The freefloat M-Lok handguard provides modular accessory mounting while the nitrided barrel and hard-coat anodized billet aluminum upper receiver ensure durability in a lightweight package designed specifically for 9MM pistol platforms.
This upper assembly carries cosmetic blemishes that do not affect function or performance. The blemished finish reduces cost while maintaining the mechanical integrity and durability of the Davidson Defense design. Blemishes are surface-level and do not impact reliability or accuracy.
The freefloat design isolates the barrel from handguard contact, maintaining consistent barrel harmonics for improved accuracy. M-Lok slots along the handguard provide secure, tool-free mounting points for tactical accessories, lights, and rail systems without requiring traditional picatinny rails.
Caliber: 9MM (9x19). Barrel Length: 8.3 inches. Barrel Material: High-performance nitrided steel. Barrel Twist: 1:10T. Barrel Thread: 1/2x36. Upper Receiver: 6061-T6 billet aluminum, Type III hard-coat anodized. Handguard Material: 6061-T6 aluminum, M-Lok compatible. Muzzle Device: 9MM flash hider, manganese phosphate finish. Weight: Optimized for compact pistol builds.
BCG and charging handle are not included. Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws.
Caliber: 9MM (9x19)
Barrel: 8.3" 9MM AR-15/AR-9 Nitrided Barrel
Barrel Material: High Performance Steel
Barrel Length: 8.3 inches
Barrel Finish: Nitride
Barrel Profile: Medium
Barrel Twist Rate: 1:10T
Barrel Thread Pitch: 1/2x36
Upper Receiver Material: 6061-T6 Billet Aluminum
Upper Receiver Finish: Type III Hard Coat Anodized
Upper Receiver: AR-15 Billet Upper Receiver for Pistol Calibers
Handguard Style: Freefloat
Handguard Material: 6061-T6 Aluminum
Handguard Color: Black
Handguard Style: M-Lok
Muzzle Device: 9mm Flash Hider A2 Bird Cage
Muzzle Device Finish: Manganese Phosphate
Muzzle Thread Pitch: 1/2x36
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