Davidson Defense Suppressor Ready Ruination w/SBA5 Brace 7.5-inch 1:16 45ACP AR-45 Freefloat M-Lok Handguard Pistol Full Build Kit

Suppressor Ready Ruination w-SBA5 Brace 7.5-Inch 1-16 .45 ACP AR-45 Freefloat M-LOK Handguard Pistol Full Build Kit

This is an AR-45 pistol full build kit chambered in .45 ACP, centered on a 7.5-inch M4 contour 4150 CMV steel barrel with a Parkerized finish, a 1-16 twist rate, and a direct blowback system with no gas tube or gas block. The PCC billet AR-15 upper receiver with a black finish anchors the front end. The 7-inch freefloat M-LOK handguard in black aluminum with an integrated hand stop covers the compact forend. The barrel is threaded at .578x28. A PCC AR bolt assembly compatible with .45 ACP and a Mil-Spec AR-15 charging handle complete the upper side. The lower completion package covers a complete Mil-Spec AR-15 lower parts kit, a Mil-Spec heavy-duty AR-15 6-position buffer tube, an 8 oz. 9mm buffer, a standard AR-15 carbine recoil spring, a Mil-Spec AR-15 and M16 receiver end plate, and a Mil-Spec AR-15 carbine castle nut. An SB Tactical SBA5 adjustable pistol stabilizing brace in black closes out the rear end. Lower receiver not included.

Key Features

• .45 ACP chambering, 7.5-inch M4 contour 4150 CMV steel barrel, Parkerized finish
• 1-16 twist rate, .578x28 thread pitch
• Direct blowback operation, no gas tube or gas block
• PCC billet AR-15 upper receiver, black
• 7-inch freefloat M-LOK handguard, black aluminum, integrated hand stop
• PCC AR bolt assembly, .45 ACP compatible
• Mil-Spec AR-15 charging handle
• Complete Mil-Spec AR-15 lower parts kit
• Mil-Spec heavy-duty AR-15 6-position buffer tube
• 9mm buffer, 8 oz.
• Standard AR-15 carbine recoil spring
• Mil-Spec AR-15 and M16 receiver end plate
• Mil-Spec AR-15 carbine castle nut
• SB Tactical SBA5 adjustable pistol stabilizing brace, black, Mil-Spec carbine buffer tube compatible

Perfect For

• AR-45 pistol builders who need everything above the lower receiver for a .45 ACP build
• Shooters pairing this kit with an existing stripped or complete AR-45 compatible lower receiver
• Builders who want an SBA5 brace and a complete .45 ACP AR-45 pistol component set with a freefloat M-LOK handguard with integrated hand stop covered in one kit

Upper Assembly

The PCC billet AR-15 upper receiver with a black finish forms the core of the front end for the AR-45 platform. The 7.5-inch M4 contour 4150 CMV steel barrel brings a Parkerized finish and a 1-16 twist rate to the .45 ACP chamber, threaded at .578x28. This upper operates on a direct blowback system, meaning there is no gas tube or gas block present or required. The 7-inch freefloat M-LOK handguard in black aluminum surrounds the barrel along the compact forend with M-LOK slots for accessory attachment and an integrated hand stop positioned along the handguard body.

Bolt Carrier Group and Charging Handle

The PCC AR bolt assembly is the platform-correct bolt assembly for the .45 ACP AR-45 blowback build. The Mil-Spec AR-15 charging handle pairs with the bolt assembly inside the upper receiver to complete the upper interior and finish the front end of the build.

Lower Completion Components

The complete Mil-Spec AR-15 lower parts kit covers the full internal lower component group, including the fire control group, magazine catch, bolt catch, and all associated pins and springs. The Mil-Spec heavy-duty AR-15 6-position buffer tube, 8 oz. 9mm buffer, and standard AR-15 carbine recoil spring form the buffer system at the rear of the lower. The Mil-Spec AR-15 and M16 receiver end plate and Mil-Spec AR-15 carbine castle nut lock the buffer tube down cleanly at the rear of the lower receiver. The SB Tactical SBA5 adjustable pistol stabilizing brace in black fits over the Mil-Spec 6-position buffer tube and closes out the rear end of the build with an adjustable length of pull and an integrated arm strap for single-handed support.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws. Lower receiver not included.