Davidson Defense Blackreach w/Magpul BTR Brace 6-inch 1:10 9MM AR-9 Freefloat Tubular M-Lok Handguard Pistol Full Build Kit

Davidson Defense Blackreach AR-9 Pistol Full Build Kit with Magpul BTR Brace - 6-inch 9mm 1:10 Freefloat Tubular M-Lok Handguard

The Davidson Defense Blackreach with Magpul BTR Brace is an AR-9 pistol full build kit chambered in 9mm with a 6-inch medium profile barrel. The kit includes the upper assembly, 9mm bolt carrier group, charging handle, Magpul BTR pistol brace, mil-spec heavy-duty 6-position buffer tube, 5.5 oz 9mm carbine buffer, carbine recoil spring, lower parts kit, and all associated buffer system hardware. The AR-9 platform operates via blowback. The lower receiver is not included.

Key Features

• 6-inch 4150 CrMoV steel medium profile barrel
• Nitride barrel finish
• 1:10 twist rate
• 1-in-2x28 thread pitch
• 7075-T6 aluminum upper receiver, anodized finish
• 4.2-inch tubular slim profile M-Lok handguard in aluminum
• 9mm nitride bolt carrier group in 8620 alloy steel
• Mil-spec M4 charging handle
• GI birdcage flash hider, 1-in-2x28 thread pitch
• Magpul BTR pistol brace in black
• Mil-spec heavy-duty 6-position buffer tube
• 5.5 oz 9mm carbine buffer and carbine recoil spring

Perfect For

• AR-9 pistol builders sourcing a complete kit around a 6-inch 9mm upper
• Builders completing a stripped AR-9 compatible lower receiver
• Shooters running a tubular slim profile M-Lok handguard on an AR-9 build
• Builders adding a Magpul BTR brace to an AR-9 pistol build

Barrel and Upper Receiver

The 6-inch medium profile barrel is 4150 CrMoV steel with a nitride finish and a 1:10 twist rate. The muzzle is threaded at 1-in-2x28 and pairs with the included GI birdcage flash hider. The upper receiver is 7075-T6 aluminum with an anodized finish and serves as the core front end structure for the AR-9 build.

Handguard

The 4.2-inch tubular M-Lok handguard is aluminum in black with a slim tubular profile that keeps the forend lightweight and compact. The M-Lok slots along the handguard provide attachment points for lights, grips, and other accessories. The handguard length is shorter than the 6-inch barrel, and the muzzle device extends beyond the handguard to provide the necessary clearance.

Bolt Carrier Group and Charging Handle

The included 9mm bolt carrier group is built from 8620 alloy steel with a nitride finish. This BCG is the correct unit for AR-9 blowback-operated configurations. The mil-spec M4 charging handle completes the upper component set.

Magpul BTR Brace and Buffer System

The Magpul BTR pistol brace in black pairs with the included mil-spec heavy-duty 6-position buffer tube. The 5.5 oz 9mm carbine buffer and carbine recoil spring cover the internal buffer system components. The lower parts kit and all associated buffer system hardware round out the core lower completion components outside the serialized lower receiver.

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