Davidson Defense Rogue Spur 7.5" Stainless 5.56 NATO AR-15 Pistol Build Kit, M-Lok, w/ Magpul BTR Brace

Rogue Spur 7.5" Stainless 5.56 NATO AR-15 Pistol Build Kit, M-Lok, w/ Magpul BTR Brace

This is a complete AR-15 pistol build kit ready to go with a Magpul BTR Brace, 7.5-inch stainless barrel, and freefloat M-Lok handguard. The 1:7 twist rate handles 5.56 NATO reliably, and the pistol-length gas system keeps the platform compact without sacrificing cycling reliability. Everything you need is included except the lower receiver.

Key Features

• Magpul BTR Brace for stable one-handed control
• 7.5-inch 416R stainless barrel with 1:7 twist for 5.56 NATO
• Freefloat ACE-20 M-Lok handguard eliminates barrel contact for consistency
• Pistol-length gas system optimized for short barrel cycling
• Complete bolt carrier group made in the USA with nitride finish
• Micro low-profile gas block at 0.75 inch diameter
• AR-15 upper receiver with M4 feed ramps and 7075 T6 aluminum construction
• GI birdcage flash hider with 1/2x28 thread pitch

Perfect For

• Shooters building a compact 5.56 pistol platform
• Home defense setups requiring maneuverability in tight spaces
• Range shooters who want a shorter, lighter AR-15 configuration
• Builders looking for a complete upper and lower parts assembly without the serialized receiver

Magpul BTR Brace Stability

The Magpul BTR Brace delivers reliable one-handed control and consistent cheek weld for pistol shooting. The design fits standard mil-spec buffer tubes and provides a stable platform for dynamic shooting without adding unnecessary weight. This brace is purpose-built for short-barreled platforms and works seamlessly with the compact profile of this build.

Stainless Barrel and Freefloat Precision

The 416R stainless barrel resists corrosion and maintains accuracy through extended shooting sessions. The 7-inch freefloat M-Lok handguard isolates the barrel from contact with the upper receiver, improving shot consistency by eliminating harmonic interference. The 1:7 twist rate stabilizes 5.56 rounds across the full velocity range of a 7.5-inch platform.

Pistol Gas System Tuning

The pistol-length gas system is calibrated for short barrel cycling without excessive bolt carrier velocity. This keeps recoil manageable and reduces wear on components while maintaining reliable feeding and ejection. The micro low-profile gas block minimizes profile and integrates cleanly with the handguard.

Complete USA-Made Bolt Carrier

The bolt carrier group is machined from 9310 alloy steel and finished with nitride for durability. Made in the USA, this carrier cycles reliably across a wide range of ammunition and handles the demands of a short-barrel platform without compromise.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws. Lower receiver not included. BCG and charging handle are included with this full build kit.