Davidson Defense Ultra Instinct w/Gauntlet Arms Brace 7.5-inch AR-15 9MM Pistol Full Build Kit

Ultra Instinct w/Gauntlet Arms Brace 7.5-inch AR-15 9MM Pistol Full Build Kit

This is a complete 9MM AR-15 pistol build kit with everything except the lower receiver. You get a 7.5-inch 4150 CrMoV barrel, billet aluminum upper receiver, quad-rail handguard, Gauntlet Arms stabilizing brace, and all the internal components needed to finish a lower. The kit accepts Glock and Colt magazines, uses a nitride bolt carrier group with external extractor, and ships with a 9MM flash hider. This is Davidson Defense quality throughout.

Key Features

• 7.5-inch 4150 CrMoV barrel with 1:10 twist rate and phosphate finish
• Billet 6061-T6 aluminum upper receiver with Type III hard coat anodized finish
• Quad-rail aircraft-grade aluminum handguard in black
• Gauntlet Arms polymer stabilizing brace for pistol configuration
• 9MM nitride bolt carrier group with external extractor, accepts Glock and Colt mags
• Mil-spec charging handle and A2 flash hider with 1/2x36 threading
• Complete buffer tube kit with 0.56 lb buffer weight included
• Lower receiver not included

Perfect For

• Shooters building a compact 9MM pistol platform
• Those who want quality components without assembling individual parts
• Glock magazine users seeking AR-15 ergonomics
• Builders looking for a short-barreled pistol configuration
• Davidson Defense component enthusiasts

Compact Pistol Performance

This kit delivers a genuinely compact 9MM platform. The 7.5-inch barrel balances velocity and size, while the quad-rail handguard gives you mounting options for lights, lasers, or other accessories. The billet upper and nitride carrier group are built for reliability. Magazine compatibility with Glock and Colt platforms means you've got ammunition flexibility most shooters appreciate.

Gauntlet Arms Brace Stability

The included Gauntlet Arms polymer brace is designed to stabilize the pistol during firing. It's a straightforward addition that improves control without adding unnecessary weight. The brace mounts to the buffer tube and keeps your wrist support secure during shooting.

Davidson Defense Quality Throughout

Every component in this kit comes from Davidson Defense, a supplier known for consistent quality across upper receivers, barrels, and carrier groups. The phosphate-finished barrel, hard-anodized upper, and nitride bolt carrier are built to handle regular use without requiring premium pricing.

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