DPMS AR-15 Pistol Lower Build Kit with Gauntlet Arms Stabilizing Brace

This is a complete lower build kit designed specifically for AR-15 pistol configurations. It includes a DPMS forged 7075-T6 aluminum lower receiver, a Davidson Defense Match Grade 31-piece lower parts kit with a 3.5 lb straight trigger, a heavy duty pistol buffer tube system, and a Gauntlet Arms polymer stabilizing brace. Everything you need to complete a lower receiver except the upper assembly.

Key Features

• DPMS DA-15 forged 7075-T6 aluminum lower receiver with MIL-A-8625 Type III Class 2 hardcoat anodize finish
• Davidson Defense Match Grade lower parts kit with 31 components and skeletonized straight trigger shoe
• Heavy duty pistol buffer tube with standard 3 oz carbine buffer and recoil spring
• Gauntlet Arms polymer stabilizing brace with integrated sling attachment point
• Mil-Spec A2 grip and US Tactical receiver end plate included
• Multi-caliber marked lower receiver compatible with standard AR-15 platform components

Perfect For

• Shooters building a compact AR-15 pistol configuration
• Builders seeking a complete lower assembly solution with quality components
• Those wanting a stabilizing brace setup without additional sourcing
• Pistol platform enthusiasts prioritizing reliability and ease of assembly

Match Grade Lower Parts Kit Precision

The included Davidson Defense Match Grade lower parts kit features a 3.5 lb single stage straight trigger with skeletonized design and black oxide finish. The 31-piece component count includes all fire control group elements, selector markings for SAFE and FIRE positions, and a mil-spec A2 grip. This grade of parts kit ensures smooth operation and consistent trigger performance across your pistol build.

Heavy Duty Pistol Buffer System

The kit includes a fixed pistol receiver extension rated for heavy duty use, paired with a standard 3 oz carbine buffer and recoil spring. This configuration is specifically matched to the Gauntlet Arms polymer brace for reliable cycling and reduced felt recoil in a compact platform. The system maintains standard AR-15 pattern compatibility for future upgrades.

Gauntlet Arms Polymer Stabilizing Brace Design

The included Gauntlet Arms polymer stabilizing brace is engineered for compact profiles with integrated sling attachment capability. The brace mounts directly to the heavy duty pistol buffer tube and provides a rigid, stable platform for pistol configurations. The polymer construction balances durability with weight savings typical of modern stabilizing brace designs.

Multi-Caliber Lower Receiver Compatibility

The DPMS DA-15 lower receiver is marked for multi-caliber use and maintains standard AR-15 magazine well and buffer extension interface patterns. This receiver accepts standard mil-spec AR-15 components and works across common pistol calibers within the AR-15 platform. Verify upper assembly caliber compatibility before final assembly.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws. Lower receiver not included. Do not attach a stock unless compliant with applicable laws.