DPMS AR-15 Pistol Lower Build Kit, Heavy Duty Pistol Buffer Tube

DPMS AR-15 Pistol Lower Build Kit with Heavy Duty Pistol Buffer Tube

This is a complete lower build kit designed for AR-15 pistol configurations. It includes a forged DPMS DA-15 lower receiver in 7075-T6 aluminum with black hardcoat anodized finish, a 31-piece Davidson Defense mil-spec lower parts kit, and a heavy duty pistol buffer tube system. The lower receiver is marked for multi-caliber use and features standard mil-spec AR-15 compatibility. This kit does not include a brace or stock, allowing you to select your own final configuration.

Key Features

• DPMS DA-15 forged 7075-T6 aluminum lower receiver with MIL-A-8625 Type III Class 2 black hardcoat anodized finish
• Davidson Defense 31-piece mil-spec lower parts kit with steel, aluminum, and polymer components
• Heavy duty AR-15 pistol buffer tube with standard 3 oz. carbine buffer and recoil spring
• Standard mil-spec trigger with curved trigger shoe and trigger guard
• Mil-spec A2 pistol grip and US Tactical receiver end plate
• Multi-caliber lower receiver marking with standard AR-15 magazine well and buffer extension interface
• All components mil-spec compatible with standard AR-15 platform parts

Perfect For

• Builders creating AR-15 pistol configurations on a budget
• Shooters wanting a complete lower assembly without selecting individual components
• Those building dedicated pistol uppers with standard AR-15 compatibility
• Pistol platforms requiring heavy duty buffer tube cycling reliability

Heavy Duty Buffer System Design

The heavy duty pistol buffer tube is engineered for AR-15 pistol cycling requirements. The system includes a standard 3 oz. carbine buffer paired with the pistol tube, creating the pressure dynamics needed for consistent operation across different upper configurations. This combination allows the lower to function reliably with various pistol-length gas systems and upper assemblies while maintaining the compact profile that defines the pistol platform.

DPMS DA-15 Lower Receiver Construction

The DPMS DA-15 lower receiver is forged from 7075-T6 aluminum, a material specification that provides strength and durability for repeated cycling. The black hardcoat anodized finish meets MIL-A-8625 Type III Class 2 specifications, offering corrosion resistance and wear protection. The multi-caliber marking indicates the receiver accepts standard AR-15 upper assemblies regardless of caliber, making it flexible for future builds or caliber conversions within the AR-15 platform.

Complete Lower Parts Kit Specification

The Davidson Defense 31-piece lower parts kit includes all internal components required to complete the lower receiver. The kit contains steel fire control group components, aluminum selector and magazine catch parts, and polymer detent springs. All components are phosphate or anodized finished for corrosion resistance. The mil-spec trigger uses a curved trigger shoe, and the kit includes the trigger guard, grip, and all required pins and springs for lower assembly.

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