The CMMG Gen II AR conversion magazine is a replacement 32-round polymer magazine designed for use with CMMG 5.7x28mm radial delayed blowback uppers and Mk4 / Mil‑Spec AR-15 lower receivers. The Gen II design adds a stylized textured grip and 5.7x28mm engraving on the body, and features upgraded feed lips for reliable feeding. This magazine is finished in black polymer and intended to support conversion of compatible AR-15 platforms to 5.7x28mm.
Key Specifications
- The magazine holds 32 rounds of 5.7x28mm ammunition.
- The caliber is specified as 5.7 x 28 mm.
- The construction material is polymer for a lightweight profile.
- The external finish is black.
- The magazine is listed to fit CMMG MK4/AR-15 lower receivers for conversion use.
- The published overall dimension is 1.20 x 2.75 x 6.70 inches.
- The product model designation is Replacement Magazine (Gen II).
- The item is described for use with CMMG 5.7×28 radial delayed blowback uppers.
- The package height is noted as 1.2000 inches and width as 2.7500 inches.
- The listed application field is Centerfire Pistol (see notes for inconsistency).
The Gen II CMMG conversion magazine provides a practical, form‑fitting option when converting compatible AR-15 lowers to 5.7x28mm. Its polymer construction and upgraded feed geometry are intended to support reliable function in the specified CMMG uppers and Mk4 lowers while keeping weight low and handling intuitive for range and conversion applications.
This description was generated with AI and may contain errors. Verify specifications and legal restrictions with the manufacturer before purchase. Provided “as-is” without warranties or guarantees.
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