Product Summary
The CMMG Mk4 AR15 Stripped Lower Receiver is a high-quality, mil-spec foundation designed for your next custom firearm build. Precision machined from forged 7075 T6 aluminum, it offers exceptional durability and reliability. This lower comes standard in a Midnight Bronze Cerakote finish and is compatible with any standard mil-spec Lower Parts Kit. It is an ideal choice for builders looking for a professional-grade base to customize with their preferred grips, triggers, and fire control groups.









