Davidson Defense Invader w/SBA3 Brace 12.5-inch Pistol-Gas 1:10 308 Win AR-10 M-Lok Pistol Full Build Kit

Invader 12.5-Inch .308 Winchester AR-10 M-LOK Pistol Full Build Kit with SB Tactical SBA3 Brace

The Invader Full Build Kit is built around a 12.5-inch .308 Winchester Bear Creek SOCOM profile barrel with a pistol-length gas system, an LR-308 billet upper receiver in the DPMS low profile pattern, a 10-inch free-float M-LOK handguard, and a complete Recoil Technologies Nitride BCG, aluminum charging handle, and SB Tactical SBA3 pistol stabilizing brace. Lower receiver is not included.

Key Features

• 12.5-inch Bear Creek .308 SOCOM barrel, 4150 CMV steel, 1:10 twist, Parkerized finish
• Pistol-length gas system
• LR-308 billet upper receiver, DPMS low profile pattern, Type III hardcoat black anodized finish
• 10-inch ultra-lightweight thin free-float M-LOK handguard with monolithic Picatinny top rail
• .308 standoff muzzle brake on 5/8x24 threads with 5/8-inch black crush washer
• Recoil Technologies Nitride LR-308 BCG (.308 Winchester, 6.5 Creedmoor, .243 Winchester compatible) and aluminum LR-308 charging handle included
• Recoil Technologies .308 mil-spec quality Lower Parts Kit and buffer-system components included
• SB Tactical SBA3 5-position adjustable pistol stabilizing brace included
• Lower receiver is not included.

Barrel and Gas System

The 12.5-inch Bear Creek barrel is machined from 4150 chrome moly vanadium steel in a SOCOM profile with a Parkerized finish and a 1:10 twist rate suited to .308 Winchester. It runs a pistol-length gas system through a pistol-length gas tube and a standard low-profile adjustable gas block finished in Melonite, with an .875-inch diameter matched to the barrel's .875-inch gas journal. At the muzzle, 5/8x24 threads carry the included .308 standoff muzzle brake rated for .30 caliber, secured with the supplied 5/8-inch black crush washer.

Upper Receiver and Handguard

The upper receiver is a billet-machined LR-308 unit built to the DPMS low profile pattern with a Type III hardcoat black anodized finish, and the ejection port door ships assembled. The forward assist is not included on this upper. It's paired with a 10-inch ultra-lightweight, thin free-float M-LOK handguard in a low-profile design with a monolithic Picatinny top rail, finished in black.

Bolt Carrier Group and Charging Handle

A Recoil Technologies bolt carrier group is included, finished in Nitride for corrosion resistance and smoother cycling, and rated across .308 Winchester, 6.5 Creedmoor, and .243 Winchester. Alongside it, an aluminum LR-308 charging handle is included, sized correctly for the AR-10 pattern upper.

Lower Parts Kit and Buffer System

The Recoil Technologies .308 mil-spec quality Lower Parts Kit is built for LR-308/AR-10 pattern platforms and includes the complete fire control group along with a black mil-spec A2 pistol grip. The buffer system pairs a 3.76-ounce LR-308 collapsible stock buffer with an AR-10 carbine extra-power buffer spring machined from 17-7 stainless steel and made in the USA, along with the AR-15 carbine castle nut and mil-spec receiver end plate, cycling inside a heavy-duty mil-spec AR-15 six-position carbine buffer tube in black.

Brace

The SB Tactical SBA3 is a 5-position adjustable pistol stabilizing brace built from high-strength, impact-resistant polymer in a minimalist carbine-style design, finished in black. It features a rubberized rear surface, an adjustable nylon stabilizing strap, and an integrated QD sling socket, and it mounts to the mil-spec carbine buffer tube included in this kit via a slide-on adjustable carbine-style mount.

Follow all manufacturer instructions and safe handling practices.

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

Lower receiver is not included.