CMMG Conversion Magazine .22 LR for AR-15/Mk4

CMMG's conversion magazine is designed to provide reliable .22 Long Rifle feeding for AR-style lower receivers and .22LR conversion kits. It features updated exterior styling intended to match CMMG's lineup and is finished in black polymer. The magazine is specified for rimfire application and configured to interface with CMMG Mk4 and mil-spec AR-15 lowers.

Key Specifications

• Manufacturer: CMMG.
• Model: Conversion Mag (22AFC77).
• Caliber: .22 LR.
• Fit: AR-15 / Mk4 lower receivers.
• Material: Polymer.
• Finish/Color: Black.
• Weight: 0.565 (unit not specified in source data).
• Compatibility: .22LR conversion kits and CMMG Mk4 / mil-spec AR-15 lowers.
• Capacity: sources conflict; some list 10 rounds while a specification table lists 25 rounds; capacity requires verification (see notes).

Built to integrate with .22LR conversion kits and CMMG Mk4 lowers, this magazine offers a platform-matched rimfire feeding solution that preserves AR-15 ergonomics for economical range use and training. Its polymer construction and matched exterior styling make it a straightforward option for shooters employing rimfire conversions on AR platforms.