Davidson Defense X 7.5-inch 1:16 10MM AR-15 Freefloat M-Lok Handguard Pistol Upper Build Kit

X 7.5-inch 1:16 10mm AR-15 Freefloat M-LOK Pistol Upper Build Kit, Blem Handguard

The X is a 10mm AR-15 pistol caliber Upper Build Kit built around a 7.5-inch platform. The kit centers on a 7.5-inch M4 contour barrel in 4150 CMV steel with a Parkerized finish, 1:16 twist rate, and 9/16x24 thread pitch, paired with a 10mm and .40 S&W compatible A2 birdcage flash hider in black and a black 5/8-inch crush washer. The upper receiver is a 6061 billet PCC upper receiver in 6061 aluminum, paired with a 7-inch freefloat M-LOK handguard in black aluminum with a full-length Picatinny top rail and integrated QD mounts. The handguard is a Blem. BCG and charging handle are not included.

Key Features

• 7.5-inch M4 contour barrel, 4150 CMV steel, Parkerized finish, 1:16 twist, 9/16x24 thread pitch
• A2 birdcage flash hider, black, 10mm and .40 S&W compatible, 9/16x24, black 5/8-inch crush washer included
• 6061 billet PCC upper receiver, 6061 aluminum
• 7-inch freefloat M-LOK handguard, black aluminum, full-length Picatinny top rail, integrated QD mounts
• Blem handguard
• BCG and charging handle not included

Perfect For

• Builders sourcing a complete 10mm AR-15 pistol upper build kit with a billet PCC upper receiver and M-LOK handguard at a Blem price point, pairing it with their own bolt carrier group and charging handle
• Shooters building a compact 7.5-inch 10mm pistol caliber platform who prefer to select their own BCG while having the Parkerized barrel and billet PCC upper covered in one kit
• AR-15 10mm builders who want a 7-inch freefloat M-LOK handguard with a full-length Picatinny top rail and integrated QD mounts on a dedicated PCC billet upper at a Blem value

Barrel and Muzzle Device

The 7.5-inch M4 contour barrel is chambered in 10mm and constructed from 4150 CMV steel with a Parkerized finish. The twist rate is 1:16 and the thread pitch is 9/16x24, which matches the included A2 birdcage flash hider compatible with 10mm and .40 S&W. A black 5/8-inch crush washer is included with the muzzle device.

Billet PCC Upper Receiver and Handguard

The 6061 billet PCC upper receiver is 6061 aluminum, purpose-built around the AR-15 pistol caliber platform. The 7-inch freefloat M-LOK handguard is black aluminum with M-LOK attachment points along the body, a full-length Picatinny top rail, and integrated QD mounts. The handguard ships as a Blem, meaning it may carry cosmetic imperfections that do not affect its structural or functional integrity. These two components define the exterior structure of the upper assembly on this 10mm platform.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws. BCG and charging handle are not included. Blem handguard may have cosmetic imperfections.