CMMG Mk4 AR-15 Lower Receiver - Stripped Lower

The CMMG Mk4/AR15 Stripped Lower Receiver in Armor Black delivers a mil-spec foundation for your next build. Precision machined from forged 7075-T6 aluminum, this stripped lower delivers an unmarked caliber designation and full compatibility with any mil-spec lower parts kit for maximum build flexibility.

• Precision machined 7075-T6 aluminum construction
• Mil-spec parts compatibility
• Unmarked caliber
• Armor Black Cerakote finish
• Reinforced buffer tube area
• Flared magazine well
• Built to mil-spec standards for durability

Machined to mil-spec standards from forged 7075-T6 aluminum, this lower is designed for use with the CMMG Mk4 upper receiver while remaining compatible with other mil-spec uppers on the market. The unmarked caliber designation gives builders flexibility to configure the rifle for their preferred chambering, and the receiver accepts any mil-spec lower parts kit for straightforward assembly with the trigger, safety selector, and other internals of their choice. A reinforced buffer tube area adds durability right where the stock mounts, and a flared magazine well smooths out magazine changes under pressure. This lower is finished in Armor Black Cerakote over the base anodizing for a durable, consistent look.

CMMG designs and manufactures AR-15 and AR-platform rifles, pistols, and components known for reliable function across a wide range of calibers. Their Mk4 platform is built to give builders a dependable, mil-spec-compatible starting point.