Davidson Defense Suppressor Ready Shank w/Gauntlet Arms Brace 7.5-inch 1:16 45ACP AR-45 M-Lok Pistol Full Build Kit

Suppressor Ready Shank w/Gauntlet Arms Brace 7.5-inch .45 ACP AR-45 Full Build Kit

The Shank w/Gauntlet Arms Brace is a Full Build Kit built around a 7.5-inch Bear Creek Arsenal barrel chambered in .45 ACP, with an M4 contour finished in Parkerized. It's paired with a 6061 aluminum pistol-caliber AR-15 billet upper receiver. It pairs a 7-inch ultra-lightweight minimalist M-LOK handguard with a Hughes Precision thread adapter, giving this build a Suppressor Ready configuration since no muzzle device is installed on that threading. It runs on a direct blowback operating system. A PCC bolt assembly for .45 ACP, Mil-Spec charging handle, complete Lower Parts Kit, pistol-caliber buffer-system components, and a Gauntlet Arms polymer stabilizing brace round out the rest of the build. The lower receiver is not included, leaving the buyer to select and supply that component separately.

Key Features

• Bear Creek Arsenal 7.5-inch .45 ACP barrel, 1:16 twist, M4 contour
• Direct blowback operating system
• 6061 aluminum pistol-caliber AR-15 billet upper receiver
• 7-inch ultra-lightweight minimalist M-LOK handguard, full-length Picatinny rail
• Hughes Precision thread adapter, Suppressor Ready; no muzzle device included
• Gauntlet Arms polymer stabilizing brace included
• Complete Mil-Spec Lower Parts Kit and pistol-caliber buffer-system components included
• Lower receiver is not included.

Barrel and Thread Adapter

The barrel is 7.5 inches long, chambered in .45 ACP and built from 4150 chrome moly vanadium steel with a Parkerized finish and M4 contour. It carries a 1:16 twist rate and a .578x28 RH muzzle thread, cycling on a direct blowback system. A Hughes Precision thread adapter is fitted at the muzzle, stepping the .578x28 RH female input thread down to a 5/8x24 RH male output thread, with no muzzle device installed on that final threading.

Upper Receiver and Handguard

The upper receiver is a 6061 aluminum billet unit built for the pistol-caliber AR-15 platform. Over the barrel sits a 7-inch ultra-lightweight minimalist handguard finished in black, using an M-LOK attachment system with a full-length Picatinny rail running along its top. This handguard does not include anti-rotation tabs.

Suppressor Ready

The Hughes Precision thread adapter converts this barrel's .578x28 RH threading to a 5/8x24 RH output, and no muzzle device is installed on that output threading, which is what makes this build Suppressor Ready. The bare threaded end leaves that output open for the buyer's own suppressor mounting solution.

Bolt Assembly and Charging Handle

The bolt assembly is a PCC unit built specifically for .45 ACP. A Mil-Spec AR-15 M4 charging handle rounds out the upper's operating components.

Lower Parts Kit and Buffer System

A complete Mil-Spec AR-15 Lower Parts Kit covers the fire-control and lower-control internals needed once a lower receiver is on hand. Behind it sits a heavy-duty AR-15 pistol buffer tube, holding a stainless steel AR 9mm buffer and a standard USA-made recoil spring. Buffer end-cap color may vary. An AR-15 carbine castle nut and Mil-Spec AR-15/M16 receiver end plate secure the buffer tube assembly to the lower.

Stabilizing Brace

Capping off the rear of the build is a Gauntlet Arms polymer stabilizing brace finished in black. It mounts directly to the pistol buffer tube included with this kit, built specifically for pistol-configured AR platforms like this .45 ACP build.

Follow all manufacturer instructions and safe handling practices.

Ensure compliance with all applicable federal, state, and local laws.

Lower receiver is not included.