Davidson Defense Hardedge w/Gauntlet Arms Brace 7.5-inch 1:10 9MM AR-9 Freefloat M-Lok Handguard Pistol Full Build Kit

Davidson Defense Hardedge with Gauntlet Arms Brace 7.5 Inch AR-9 Full Build Kit

The Davidson Defense Hardedge with Gauntlet Arms Brace delivers a compact and durable 9MM AR-9 pistol platform purpose built for close quarters performance. Featuring a 7.5 inch Akali barrel with 1 in 10 twist rate, this kit balances extremely compact dimensions with reliable 9MM ballistics. The barrel crafted from 4150 CrMoV steel with phosphate finish and heavy barrel profile ensures reliable shooting through extended sessions. A freefloat M-Lok handguard constructed from lightweight aluminum allows modular customization for lights, grips and other accessories. The AR-15 upper receiver made from 7075-T6 aluminum with anodized finish provides strength and corrosion resistance. A 9MM nitride bolt carrier group delivers durability and reliable cycling with reduced friction. The polymer stabilizing brace from Gauntlet Arms provides enhanced stability while keeping weight minimal. A 9MM A2 birdcage flash hider completes the setup with effective flash suppression. This full build kit delivers coordinated components for complete AR-9 pistol assembly.

Key Features

• 7.5 inch 4150 CrMoV barrel with phosphate finish, heavy barrel profile and 1 in 10 twist
• Freefloat M-Lok handguard from lightweight aluminum
• 7075-T6 aluminum upper receiver with anodized finish and 9MM nitride BCG
• Gauntlet Arms polymer stabilizing brace for enhanced stability
• 9MM A2 birdcage flash hider included

Perfect For

• Builders seeking extremely compact 9MM AR-9 pistol platforms
• Shooters prioritizing close quarters dimensions with stabilizing brace support
• Users needing freefloat M-Lok modularity in compact configurations
• Builds requiring coordinated upper and lower pistol components

Compact Heavy Barrel Configuration

The 7.5 inch barrel length provides extremely compact overall dimensions ideal for close quarters applications and vehicle use. The heavy barrel profile maintains accuracy potential through sustained fire by absorbing heat and reducing harmonic vibrations. This combination delivers a pistol that remains compact while the barrel mass supports consistent accuracy during rapid fire. Phosphate finish offers reliable corrosion protection through a proven coating used across military and commercial firearms.

Gauntlet Arms Brace

The Gauntlet Arms polymer stabilizing brace provides a stable shooting platform while keeping weight minimal in the compact configuration. Polymer construction resists impact and environmental wear while maintaining structural integrity. The brace design fits securely on pistol buffer tubes for consistent positioning during shooting. High strength polymer formulation ensures durability through repeated use and recoil forces without adding excessive bulk to the already compact 9MM build.

Nitride BCG Performance

The 9MM nitride bolt carrier group creates a hard, low friction surface that reduces wear and simplifies cleaning. This coating allows the BCG to run with less lubrication compared to standard phosphate finishes while maintaining reliable cycling. Fouling and carbon deposits wipe away more easily, shortening maintenance time after high volume shooting sessions. The coating also provides corrosion protection for long term storage or use in humid conditions.

Freefloat M-Lok Customization

The freefloat M-Lok handguard isolates the barrel from external contact, supporting accuracy by preventing shifts in point of impact from grip pressure or mounted accessories. M-Lok slots provide direct mounting for lights, grips and other devices without additional rail sections adding weight. Lightweight aluminum construction keeps the overall build weight minimal for comfortable extended handling. The freefloat design also aids heat dissipation during sustained shooting.

Follow safe handling and manufacturer instructions

Ensure compliance with all applicable laws

Verify proper assembly of all components before use

Confirm ammunition type is 9MM before firing