CMMG Mk3 .308 AR-10 Lower Parts Kit Gunbuilder's Kit 38CA61A

The CMMG Mk3 Gunbuilder’s Lower Parts Kit is designed for .308 AR (AR-10/LR-308 pattern) lower builds where you plan to select your own commonly upgraded components. This kit includes most of the small parts needed to assemble a lower receiver group, while intentionally omitting the pistol grip and fire control group so you can customize your build. Built to meet or exceed mil-spec expectations, it’s compatible with CMMG Mk3 lowers and most LR308-type lowers.

Product Highlights

• Gunbuilder’s-style Mk3 lower parts kit for .308 AR builds (AR-10/LR-308 pattern)
• Does not include pistol grip or fire control group for maximum customization
• Compatible with CMMG Mk3 lowers and most LR308-type lower receivers
• Parts meet or exceed mil-spec standards for dependable fit and function
• Ideal for builders upgrading trigger and grip components from the start

Specs

• Brand: CMMG
• Product Type: Lower Receiver Parts Kit (Gunbuilder’s Kit)
• Platform/Compatibility: CMMG Mk3 lowers; LR308-type lowers (.308 AR / AR-10 pattern)
• Included: Most lower receiver small parts required for assembly
• Not Included: Fire Control Group; Pistol Grip
• Manufacturer Part Number: 38CA61A
• UPC: 815835015415