Sharps Bros Ambi AR-15 Pistol Lower Build Kit with Gauntlet Arms Polymer Brace

Sharps Bros Ambi AR-15 Pistol Lower Build Kit with Gauntlet Arms Brace

The Sharps Bros Gen 2 Livewire lower receiver paired with a complete mil-spec lower parts kit and Gauntlet Arms polymer brace gives you everything needed to build a compact AR-15 pistol. This kit includes the forged 7075-T6 aluminum lower receiver, all internal fire control components, pistol buffer tube system, and stabilizing brace. The ambidextrous bolt release makes charging and operation equally accessible from either side of the receiver.

Key Features

• Sharps Bros Gen 2 Livewire forged lower receiver in 7075-T6 aluminum with black anodized finish • Ambidextrous bolt release for left and right hand operation • Complete mil-spec lower parts kit with fire control group and pistol grip included • Heavy duty pistol buffer tube with standard carbine recoil buffer and spring • Gauntlet Arms high-strength polymer stabilizing brace with sling loop mount • Multi-caliber lower receiver compatible with various AR-15 configurations • Receiver weighs 8.70 oz, brace construction uses lightweight polymer

Perfect For

• Shooters building compact AR-15 pistol configurations • Left-handed and ambidextrous shooters needing dual-control access • Builders seeking a complete lower assembly without sourcing individual components • Pistol builds prioritizing lightweight design and polymer brace stability

Sharps Bros Forged Lower Receiver Quality

The Gen 2 Livewire lower is forged and CNC machined from 7075-T6 aluminum, a material chosen for strength and weight efficiency. The black anodized finish resists corrosion while maintaining a clean tactical appearance. Multi-caliber design means this lower receiver works with standard AR-15 uppers across multiple cartridges without modification or swapping components.

Gauntlet Arms Stabilizing Brace Design

The included Gauntlet Arms brace is constructed from high-strength polymer and mounts directly to the pistol buffer tube. The fixed, non-adjustable design keeps weight minimal while the integrated sling loop provides mounting flexibility. This brace is engineered specifically for AR-15 pistol buffer tube compatibility and delivers a stable platform for one-handed or two-handed operation.

Complete Lower Build Kit Assembly

This kit includes everything except the upper receiver and serialized lower receiver blank. You get the forged lower receiver, complete mil-spec lower parts kit with trigger and hammer assembly, heavy duty pistol buffer tube, standard carbine recoil buffer and spring, receiver end plate, castle nut, and the Gauntlet Arms stabilizing brace. No additional lower parts sourcing is required.

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