Wilson AR10 Receiver Kit Lower Small Parts Build Set

Building a custom AR-10 on a Wilson Combat lower receiver? The Wilson AR10 Receiver Kit Lower Small Parts Build Set gives you the specialized hardware needed to complete a WC-10 style lower without starting from scratch. This kit includes all the small parts that Wilson Combat uses in their own shop builds—the exact components engineered to work with Wilson's billet lower platform. If you're assembling a WC-10 rifle and need the detents, springs, selectors, and catch hardware to bring your lower to life, this is the focused parts package that gets you there.

Because WC-10 lowers feature an integral trigger guard, this kit omits the separate trigger guard and its pin. Equally important: it does not include fire control components—no hammer, trigger, disconnector, or trigger springs—so you'll source those separately based on your build spec and local regulations. What is here are the takedown and pivot pins, bolt catch assembly, magazine catch, safety selector, and all the detents and springs that hold everything in place. That's the hardware that often gets overlooked until you're halfway through assembly.

The kit includes Wilson Combat's Bullet Proof Bolt Release design, engineered for reliability in heavy use. Whether you're building a precision rifle, a match gun, or a hunting AR-10, having factory-matched small parts from the builder's own supply chain removes guesswork and compatibility headaches. This is parts-bin efficiency: you get what you need, nothing redundant.

Key Features

• Wilson Combat Bullet Proof Bolt Release for enhanced reliability
• Complete takedown and pivot pin assembly with detents and springs
• Magazine catch, catch spring, and catch button included
• Right-hand semi-auto safety selector
• Bolt catch plunger, roll pin, and spring
• Safety detent and detent spring
• Engineered to work with WC-10 style billet lower receivers

Specifications

Frequently Asked Questions

What lower receivers is this kit compatible with?

This kit is designed specifically for Wilson Combat WC-10 style lower receivers. Do not use these parts with standard AR-10 or other manufacturer lowers.

Does this kit include a trigger and hammer?

No. This kit contains only the small parts and hardware—takedown pins, detents, springs, bolt catch, magazine catch, and safety selector. You will need to source the fire control group (hammer, trigger, disconnector, and associated springs) separately.

Is a trigger guard included?

No. WC-10 lower receivers have an integral trigger guard, so a separate trigger guard and pin are not included in this kit.

Which hand safety does this include?

This kit includes a right-hand semi-auto safety selector.