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

Rapid Drop 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 with everything you need except the lower receiver. It features a 7.5-inch 416R stainless steel barrel with a 1:7 twist rate, a billet upper receiver, and a freefloat M-Lok handguard that lets you mount optics and accessories exactly where you want them. The Magpul BTR brace provides a solid grip and support, while the pistol-length gas system keeps the action cycling reliably with 5.56 NATO ammunition.

Key Features

• 7.5-inch 416R stainless steel barrel with 1:7 twist rate for 5.56 NATO
• Billet upper receiver with anodized finish
• Freefloat M-Lok handguard for ergonomic customization and accessory mounting
• Magpul BTR pistol brace in black polymer
• Complete bolt carrier group with nitride finish
• Mil-spec charging handle and GI birdcage flash hider
• Pistol-length gas system with micro low-profile gas block
• Blemished handguard
• Lower receiver not included

Perfect For

• Shooters building a compact 5.56 NATO pistol platform
• Those wanting a shorter, maneuverable AR-15 configuration
• Builders who prefer freefloat accuracy and M-Lok modularity
• Users prioritizing a quality brace and premium components

Compact 5.56 Pistol Configuration

This kit delivers a short, handy platform built on proven AR-15 architecture. The 7.5-inch barrel keeps overall length minimal while the 1:7 twist handles a wide range of 5.56 ammunition. The freefloat handguard eliminates contact with the barrel, supporting consistent shot placement without barrel harmonics interference. The billet upper receiver provides precision machining and durability for extended shooting.

Blemished Handguard Value

The M-Lok freefloat handguard carries a blem designation, meaning it has minor cosmetic imperfections that do not affect function or performance. This reduces cost without compromising the modular mounting system. The handguard remains fully functional for accessory mounting and maintains the same freefloat design as unblemished versions.

Magpul BTR Brace Support

The Magpul BTR brace delivers a comfortable, stable platform for shooting. The polymer construction is lightweight, and the design supports multiple grip positions. The brace mounts to the buffer tube using standard AR-15 architecture, integrating seamlessly with the kit's heavy-duty mil-spec tube and standard carbine recoil buffer.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws. Lower receiver not included. Verify local laws regarding pistol braces before assembly.