Davidson Defense Commandant w/BTR Brace 8.5-inch Pistol-Gas 1:7 5.56x45mm NATO AR-15 Freefloat M-Lok Handguard Pistol Full Build Kit

Commandant Magpul BTR Brace 8.5-inch Pistol-Gas 1:7 5.56 NATO AR-15 Freefloat M-LOK Pistol Full Build Kit

The Commandant is a 5.56 NATO AR-15 Full Build Kit built around a compact 8.5-inch pistol-length gas platform. The kit centers on an 8.5-inch M4 contour barrel with a 1:7 twist rate and 1/2x28 thread pitch, paired with an A2 birdcage flash hider and a black crush washer. A micro low-profile steel gas block at 0.750 diameter and a pistol-length gas tube are included on the front end. The 7075-T6 aluminum black anodized upper receiver features M4 feed ramps, a forward assist, and an ejection port door assembly, paired with a 7-inch ultra-lightweight minimalist freefloat M-LOK handguard featuring a continuous Picatinny top rail and no anti-rotation tabs. A USA-made complete AR-15 bolt carrier group compatible with .223 Remington, 5.56 NATO, .300 Blackout, and .350 Legend, 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 Mil-Spec heavy-duty 6-position aluminum carbine buffer tube, a standard 3 oz AR-15 carbine buffer, a USA-made standard AR-15 carbine recoil spring, an AR-15 M16 Mil-Spec receiver end plate, and a Mil-Spec AR-15 carbine castle nut. The Magpul BTR pistol brace in black lightweight polymer with a compact profile, compatible with standard Mil-Spec AR-15 buffer tubes, is included. Lower receiver not included.

Key Features

• 8.5-inch M4 contour barrel, 1:7 twist, 1/2x28 thread pitch, 5.56 NATO
• Pistol-length gas system
• Pistol-length gas tube
• Micro low-profile steel gas block, 0.750
• A2 birdcage flash hider, 1/2x28, black crush washer included
• 7075-T6 aluminum upper receiver, black anodized, M4 feed ramps, forward assist, ejection port door assembly
• 7-inch ultra-lightweight minimalist freefloat M-LOK handguard, continuous Picatinny top rail, no anti-rotation tabs
• USA-made complete AR-15 bolt carrier group, .223 Remington and 5.56 NATO and .300 Blackout and .350 Legend compatible
• Mil-Spec AR-15 M4 charging handle
• Complete Mil-Spec AR-15 lower parts kit
• Mil-Spec heavy-duty 6-position aluminum carbine buffer tube
• Standard AR-15 carbine buffer, 3 oz
• Standard AR-15 carbine recoil spring, made in USA
• AR-15 M16 Mil-Spec receiver end plate
• Mil-Spec AR-15 carbine castle nut
• Magpul BTR pistol brace, black lightweight polymer, compact profile, Mil-Spec AR-15 buffer tube compatible

Perfect For

• Builders sourcing a complete 5.56 NATO AR-15 pistol full build kit with a 7075-T6 black anodized upper receiver, 8.5-inch M4 contour barrel, USA-made BCG, 7-inch ultra-lightweight minimalist freefloat M-LOK handguard with continuous Picatinny top rail, and Magpul BTR brace on a Mil-Spec carbine buffer tube already included, pairing it with their own lower receiver
• Shooters building a compact 8.5-inch pistol-gas 5.56 NATO platform who want the USA-made BCG, charging handle, complete lower parts kit, and Magpul BTR brace covered in one kit with a lightweight minimalist M-LOK freefloat handguard and continuous Picatinny top rail
• AR-15 pistol builders who want a 5.56 NATO full build kit with a USA-made BCG compatible with multiple calibers and a Magpul BTR lightweight polymer brace with a compact profile without sourcing components separately

Barrel and Muzzle Device

The 8.5-inch M4 contour barrel is chambered in 5.56 NATO and features a 1:7 twist rate and 1/2x28 thread pitch, which matches the included A2 birdcage flash hider. A black crush washer, a micro low-profile steel gas block at 0.750 diameter, and a pistol-length gas tube cover the front end gas configuration on this pistol-length platform.

Upper Receiver and Handguard

The 7075-T6 aluminum upper receiver carries a black anodized finish with M4 feed ramps, a forward assist, and an ejection port door assembly. The 7-inch ultra-lightweight minimalist freefloat M-LOK handguard features a continuous Picatinny top rail and no anti-rotation tabs, with 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 Carrier Group and Charging Handle

The USA-made complete AR-15 bolt carrier group is compatible with .223 Remington, 5.56 NATO, .300 Blackout, and .350 Legend. 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 Mil-Spec heavy-duty 6-position aluminum carbine buffer tube, a standard 3 oz AR-15 carbine buffer, a USA-made standard AR-15 carbine recoil spring, an AR-15 M16 Mil-Spec receiver end plate, and a Mil-Spec AR-15 carbine castle nut. The Magpul BTR pistol brace in black lightweight polymer with a compact profile pairs with the included Mil-Spec carbine 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.