Davidson Defense Lockjaw 7.5-inch 1:16 10MM AR-15 Freefloat Tubular Handguard Pistol Complete Upper Build

Lockjaw 7.5-inch 1:16 10mm AR-15 Freefloat Tubular Handguard Pistol Complete Upper

The Lockjaw is a 10mm AR-15 pistol caliber Complete Upper 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 MFFAR7 smooth freefloat handguard in black aluminum with a slim smooth profile and full-length Picatinny rail. A PCC AR bolt assembly compatible with 10mm and .40 S&W and a Mil-Spec aluminum AR-15 M4 charging handle in black complete the upper component set.

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, black 5/8-inch crush washer included
• 6061 billet PCC upper receiver, 6061 aluminum
• MFFAR7 7-inch smooth freefloat handguard, black aluminum, slim smooth profile, full-length Picatinny rail
• PCC AR bolt assembly, 10mm and .40 S&W compatible
• Mil-Spec aluminum AR-15 M4 charging handle, black

Perfect For

• Builders sourcing a complete 10mm AR-15 pistol upper with a billet PCC upper receiver, slim smooth freefloat handguard, and bolt assembly already included, pairing it with their own lower receiver
• Shooters building a compact 7.5-inch 10mm pistol caliber platform who want the bolt assembly and charging handle covered in one complete upper
• AR-15 10mm builders who want a 7-inch slim smooth freefloat handguard with a full-length Picatinny rail on a dedicated PCC billet upper without sourcing components separately

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 MFFAR7 7-inch smooth freefloat handguard is black aluminum with a slim smooth exterior profile and a full-length Picatinny rail for optic and accessory mounting. These two components define the exterior structure of the upper assembly on this 10mm platform.

Bolt Assembly and Charging Handle

The PCC AR bolt assembly is compatible with 10mm and .40 S&W on this blowback platform. A Mil-Spec aluminum AR-15 M4 charging handle in black is included to complete the upper component set.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws.