Davidson Defense Big Stick w/Gauntlet Arms Brace 5.5-inch 1:16 10MM AR-15 Freefloat M-Lok Handguard Pistol Full Build Kit

Big Stick Gauntlet Arms Brace 5.5-inch 1:16 10mm AR-15 Freefloat M-LOK Pistol Full Build Kit

The Big Stick is a 10mm Auto AR-15 Full Build Kit built around a compact 5.5-inch direct blowback platform. The kit centers on a 5.5-inch steel barrel with a black nitride finish, 1:16 twist rate, and 5/8x24 thread pitch, paired with a Pershing steel flash can and a black 5/8-inch crush washer. The billet pistol caliber AR-15 upper receiver in 6061 aluminum is paired with a 4-inch slim-line freefloat M-LOK handguard in black with a full-length Picatinny top rail. A complete PCC AR bolt assembly for 10mm and .40 S&W and a Mil-Spec AR-15 M4 charging handle complete the upper side. The lower hardware includes a complete Mil-Spec AR-15 lower parts kit, a heavy-duty black pistol buffer tube, an 8 oz buffer, a standard AR-15 carbine recoil spring, an AR-15 M16 Mil-Spec receiver end plate, and an AR-15 carbine castle nut. The Gauntlet Arms polymer stabilizing brace in black is included. Lower receiver not included.

Key Features

• 5.5-inch steel barrel, black nitride finish, 1:16 twist, 5/8x24 thread pitch, 10mm Auto
• Direct blowback platform
• Pershing steel flash can, 5/8x24, black 5/8-inch crush washer included
• Billet pistol caliber AR-15 upper receiver, 6061 aluminum
• 4-inch slim-line freefloat M-LOK handguard, black, full-length Picatinny top rail
• Complete PCC AR bolt assembly, 10mm and .40 S&W compatible
• Mil-Spec AR-15 M4 charging handle
• Complete Mil-Spec AR-15 lower parts kit
• Heavy-duty black pistol buffer tube
• 8 oz buffer
• Standard AR-15 carbine recoil spring
• AR-15 M16 Mil-Spec receiver end plate
• AR-15 carbine castle nut
• Gauntlet Arms polymer stabilizing brace, black

Perfect For

• AR-15 PCC pistol builders sourcing a complete 10mm Auto blowback full build kit with a billet pistol caliber upper, black nitride barrel, PCC bolt assembly compatible with 10mm and .40 S&W, and Gauntlet Arms brace already included, pairing it with their own lower receiver
• Shooters building a compact 5.5-inch 10mm direct blowback pistol platform who want the bolt assembly, charging handle, Pershing steel flash can, and Gauntlet Arms brace covered in one kit with a pistol buffer tube
• AR-15 PCC builders who want a 10mm blowback pistol full build kit with a complete lower parts kit and pistol buffer tube without sourcing components separately

Barrel and Muzzle Device

The 5.5-inch barrel is chambered in 10mm Auto and constructed from steel with a black nitride finish. The twist rate is 1:16 and the thread pitch is 5/8x24, which matches the included Pershing steel flash can. A black 5/8-inch crush washer is included. The direct blowback platform design addresses the 10mm Auto cartridge in a pistol caliber AR-15 pattern build.

Billet Upper Receiver and Handguard

The billet pistol caliber AR-15 upper receiver is 6061 aluminum and is designed around the 10mm direct blowback platform. The 4-inch slim-line freefloat M-LOK handguard is black with a full-length Picatinny top rail and M-LOK attachment points along the body for accessory mounting. These two components define the exterior structure of the upper assembly on this AR-15 pistol platform.

Bolt Assembly and Charging Handle

The complete PCC AR bolt assembly is compatible with 10mm Auto and .40 S&W. A Mil-Spec AR-15 M4 charging handle is included to complete the upper component set.

Lower Parts Kit and Buffer System

The complete Mil-Spec AR-15 lower parts kit covers the internal lower receiver components. The buffer system includes a heavy-duty black pistol buffer tube, an 8 oz buffer, a standard AR-15 carbine recoil spring, an AR-15 M16 Mil-Spec receiver end plate, and an AR-15 carbine castle nut. The Gauntlet Arms polymer stabilizing brace in black pairs with the included pistol buffer tube and covers the rear brace interface for this pistol lower build kit.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws. Lower receiver not included. Verify local and state laws regarding pistol brace use and classification. Verify compatibility with your specific 10mm lower receiver before use.