The Wilson Combat Small Parts Kit (Wilson Combat part no. TRLOWERKB15) supplies the small hardware needed to complete an AR-15 billet lower receiver build, engineered to Wilson Combat’s own tolerances for a clean fit.

Key Specifications

• Universal caliber compatibility across standard AR-15 platform builds.
• Designed specifically for billet lower receivers for a precise fit.
• Supplies the small hardware pieces needed to move from a stripped lower to a functioning build.
• Includes 20 precision-machined components — takedown pins, detents, and springs — to complete a billet lower build.
• Parts are machined to exacting tolerances from high-quality materials for smooth, reliable operation.

Frequently Asked Questions

Does this include a stripped lower receiver? No, this is a small parts kit only, intended to complete a billet lower you already have.

Is this restricted like a firearm? No, this is an unregulated accessory kit and ships without an FFL transfer.

Buy AR-15 Lower Parts Kits

Order through Wilson Combat‘s lower parts kits lineup, and it ships straight to your door.