CMMG Mk3 Gun Builders 308 Lower Parts Kit Without Grip/Fire Control

The CMMG Gunbuilder Lower Parts Kit is a customizable set of small components for building an AR-10 style lower receiver chambered for .308 Winchester. It supplies the standard mil-spec pins, springs, detents, and catches needed to complete a lower, while leaving the pistol grip and trigger components for the builder to choose.

The kit is designed for the LR-308 and AR-10 mil-spec lower receiver platform. Its parts are finished in black and include the bolt catch, magazine catch, selector, take-down pins, and hammer pin. Because grip and fire control components are excluded, the kit can accommodate common aftermarket options such as match-grade triggers.

Buyers who already own a grip and fire control group can use this kit to avoid paying for parts they will not install. Verify fit with your specific receiver before assembly.

• Platform: AR-10 / LR-308
• Caliber: .308 Winchester
• Type: Lower parts kit
• Color: Black
• Fits: LR-308 / AR-10 mil-spec lower receiver
• Includes: Bolt catch, magazine catch, selector, take-down and hammer pins, springs and detents
• Excludes: Pistol grip and fire control group