DPMS SBA3 Lower Build Kit with Trigger – AR-15 Platform

This DPMS lower build kit provides the essential components needed to complete an AR-15 lower receiver, including a factory trigger assembly and SBA3 pistol stabilizing brace. Designed for builders assembling AR-15 pistols or rifles, this kit streamlines the parts-gathering process by bundling the fire control group, lower parts, buffer system, and brace in one package. Ideal for home builders comfortable with basic AR assembly or those completing a stripped lower receiver.

Components include mil-spec fire control parts, standard lower receiver hardware (trigger/hammer pins, safety selector, magazine catch, bolt catch), carbine-length buffer tube assembly with spring and buffer, and an SBA3 adjustable pistol brace. The SBA3 features a split design for improved fit and five positions of adjustment. Installation requires standard AR assembly tools—punches, hammer, and an armorer's wrench. No permanent modifications or gunsmithing required for drop-in installation on mil-spec lower receivers.

• Part Type: Complete Lower Build Kit
• Compatible Firearms: AR-15 Mil-Spec Lower Receivers
• Includes: Trigger Assembly, Lower Parts Kit, Buffer Tube/Spring/Buffer, SBA3 Pistol Brace
• Buffer System: Carbine-Length
• Brace Adjustment: 5 Positions
• Installation: Drop-In with Basic AR Assembly Tools