CMMG Gen II Mk4/AR15 Magazine 9mm 10rd Black

The CMMG Gen II magazine is a 9mm solution designed for Mk4/AR15 platforms. It provides a 10-round capacity in a black polymer body sized to closely match common 5.56 AR-15 magazine dimensions for pouch and carrier compatibility. Built to work with CMMG radial delayed blowback uppers, the magazine includes features that support reliable function in compatible conversion builds and range use.

Key Specifications

• The magazine holds 10 rounds.
• Chambered for 9mm Luger.
• Constructed from polymer for a lightweight profile.
• Finished in black.
• Designed to work in Mk4/AR15 lower receivers with CMMG radial delayed blowback uppers.
• Exterior dimensions measure approximately 1.35 x 3.95 x 8.75 inches.
• The magazine weighs approximately 0.414 lb.
• Model designation is 9AR (Gen II).
• Features a Magpul P-MAG style body for compatibility with common mag pouches.
• Includes a last-round bolt hold-open function when used with compatible uppers.

Engineered for shooters building or operating 9mm AR conversions, this Gen II magazine blends dimensional compatibility with proven magazine features to simplify magazine handling and carriage. Its polymer construction and Magpul-style profile make it a practical choice for range-focused enthusiasts and anyone seeking consistent function in compatible Mk4/AR15 setups.