Sharps Bros AR-15 Rifle Lower Build Kit, FDE M4 Stock & Ambidextrous Bolt Release

Sharps Bros Ambidextrous Bolt Release AR-15 Lower Build Kit, FDE M4 Stock

This is a complete lower build kit with everything you need to finish a stripped lower receiver except the serialized receiver itself. It includes a Sharps Bros Gen 2 Livewire lower receiver with ambidextrous bolt release, a full mil-spec lower parts kit, carbine buffer system, and a 6-position adjustable M4 buttstock in FDE.

Key Features

• Ambidextrous bolt release for both left and right handed operation
• Sharps Bros Gen 2 Livewire lower receiver, forged 7075-T6 aluminum, CNC machined
• Complete mil-spec lower parts kit with fire control group and pistol grip included
• 6-position adjustable M4 carbine buttstock in Flat Dark Earth with integrated sling loop
• Mil-spec carbine buffer tube, buffer, and recoil spring
• Multi-caliber compatible lower receiver platform
• Threaded bolt catch pin for secure retention

Perfect For

• Builders looking for a complete lower build kit with quality components
• Left handed and right handed shooters who prefer ambidextrous controls
• Budget conscious builds that don't sacrifice on receiver quality
• AR-15 platform users who want adjustable length of pull

Sharps Bros Gen 2 Livewire Lower Receiver

The Gen 2 Livewire lower is forged from 7075-T6 aluminum and CNC machined for tight tolerances and reliable operation. The ambidextrous bolt release lets you cycle the action from either side of the receiver, making it equally functional for left and right handed shooters. The receiver is anodized black and weighs 8.70 oz, keeping overall rifle weight down. This lower is compatible with any mil-spec upper assembly and works across multiple calibers on the AR-15 platform.

Complete Lower Parts Kit and Buffer System

The kit includes a full mil-spec lower parts kit with all fire control components, trigger assembly, hammer, disconnector, selector switch, magazine catch, and bolt catch. The included pistol grip is standard mil-spec. The carbine buffer system consists of a mil-spec heavy duty buffer tube with 6 position adjustability, a standard 3 oz carbine buffer, and a USA made carbine recoil spring. The US Tactical mil-spec receiver end plate and AR-15 carbine castle nut complete the system.

6-Position M4 Buttstock in FDE

The Davidson Defense M4 carbine buttstock is reinforced polymer in Flat Dark Earth and features 6 position adjustable length of pull. The stock has a spring loaded adjustment lever for secure lockup, a textured non slip buttplate for control, and an integrated sling loop for carrying options. The lightweight design keeps the rifle balanced, and the low profile ergonomic shape is comfortable for extended shooting sessions. The stock drops in on any mil-spec carbine buffer tube.

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