DPMS AR-15 Pistol Lower Build Kit, FDE SBA3 Adjustable Stabilizing Brace

DPMS AR-15 Pistol Lower Build Kit with SBA3 Brace - Complete Mil-Spec Setup

This is a fully assembled lower build kit designed for AR-15 pistol configurations. It includes a serialized DPMS DA-15 forged aluminum lower receiver paired with a complete 31-piece mil-spec lower parts kit, buffer system, and SB Tactical SBA3 adjustable stabilizing brace in Flat Dark Earth.

Key Features

• DPMS DA-15 forged 7075-T6 aluminum lower receiver with mil-spec anodizing
• Davidson Defense complete mil-spec lower parts kit with 31 components
• SB Tactical SBA3 adjustable stabilizing brace in FDE with nylon strap
• 6-position carbine buffer tube with standard carbine buffer and recoil spring
• Mil-spec fire control group with curved trigger shoe and A2 pistol grip
• US Tactical receiver end plate and mil-spec castle nut included
• Multi-caliber marked receiver compatible with standard AR-15 platforms

Perfect For

• Builders creating AR-15 pistol configurations with adjustable brace setups
• Shooters wanting a complete lower assembly without sourcing individual components
• Those prioritizing mil-spec reliability and standard AR-15 compatibility
• Builders in states allowing pistol stabilizing braces

SB Tactical SBA3 Adjustable Brace

The SBA3 is a slide-on adjustable stabilizing brace designed for carbine-length buffer tubes. It features a streamlined polymer design with an adjustable nylon strap and multiple length positions to accommodate different shooter preferences and grip styles. The brace mounts directly to the mil-spec receiver extension included in this kit. This configuration allows users to customize their setup based on their specific needs and local regulations.

Complete Lower Build Kit Contents

This kit includes all components needed to complete a lower receiver assembly. The DPMS DA-15 receiver accepts standard mil-spec AR-15 parts, and the kit provides the fire control group, buffer system, brace, and all hardware required for assembly. The lower receiver is the only federally regulated component and comes serialized from DPMS. Upper receiver, bolt carrier group, and charging handle are not included with this lower kit.

Buffer System and Controls

The kit features a Davidson Defense heavy-duty 6061 aluminum buffer tube with 6-position adjustment capability. It includes a standard 3-ounce carbine buffer, carbine recoil spring, receiver end plate, and castle nut. The mil-spec fire control group uses a curved trigger shoe with standard selector markings. Magazine well accepts standard AR-15 pattern magazines.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws. Upper receiver, bolt carrier group, and charging handle are not included. Verify local regulations regarding pistol stabilizing braces before assembly.