Finish Your Lower Kit (Carbine): Ambidextrous Safety Selector + EX Performance Adjustable Stock + AR-15 Carbine Buffer Tube Kit + Complete Lower Parts Kit

Finish Your Lower Kit (Carbine): Ambidextrous Safety Selector + EX Performance Adjustable Stock + AR-15 Carbine Buffer Tube Kit + Complete Lower Parts Kit

This AR-15 Finish Your Build Kit delivers a complete solution for assembling a functional and adaptable AR-15 lower receiver. This package combines the Adaptive Tactical EX Performance Adjustable Stock, a Mil-Spec carbine buffer tube kit, a complete AR-15 lower parts kit, and an ambidextrous safety selector. Designed for builders who want a streamlined, compatible set of components, this kit provides everything needed to complete the rear end and control system of a Mil-Spec AR-15 lower. With lightweight construction, adjustable ergonomics, and dual-handed operation capability, this bundle is built for comfort, control, and reliable performance across a wide range of shooting applications.

Key Features

• Adaptive Tactical EX Performance adjustable stock with 6-position length-of-pull adjustment
• Lightweight glass-filled polymer construction for reduced overall rifle weight
• Mil-Spec carbine buffer tube kit for reliable compatibility and function
• Complete AR-15 lower parts kit for full lower receiver assembly
• Ambidextrous safety selector for left- or right-handed operation
• QD sling mount and sling loop compatibility for flexible carry options
• Rubberized buttpad for improved recoil control and shoulder stability
• Ergonomic design optimized for comfort during extended shooting sessions

Perfect For

• AR-15 builders completing a full lower receiver assembly
• Tactical shooters needing adjustable stock ergonomics and sling flexibility
• Left- and right-handed users requiring ambidextrous controls
• Range use, defensive setups, and general-purpose rifle builds
• Shooters looking to reduce weight while maintaining durability and control

EX Performance Adjustable Stock

The Adaptive Tactical EX Performance stock brings a lightweight yet durable foundation to this build. Constructed from glass-filled polymer, it maintains strength while keeping overall weight low. The 6-position adjustment system allows precise control over length of pull, helping shooters adapt the rifle to body size, gear setup, or shooting position. The integrated QD mount and sling loop offer multiple carry options, while the rubberized buttpad enhances stability and reduces movement under recoil. Its ambidextrous-friendly design ensures consistent usability across different shooters and configurations.

Lower Parts Kit + Ambidextrous Control Integration

The included AR-15 lower parts kit provides all essential components required to complete the fire control group and receiver assembly, including trigger components, springs, detents, pins, and controls. Paired with the ambidextrous safety selector, this kit improves operational flexibility by allowing safe and intuitive manipulation from either side of the rifle. The ambi selector enhances usability in dynamic environments and supports modern training standards where multi-hand control is preferred.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable laws. Lower receiver not included. Verify component compatibility with your specific lower receiver before assembly.