This is a 10-round magazine for the CMMG Mk4 in 5.7x28mm.

Compatible with CMMG 5.7×28 Radial Delayed Blowback Uppers and Mk4/Mil-Spec AR15 lower receivers.

Comes with the CMMG Lifetime Quality Guarantee against material and workmanship defects.

Features:

• 2^nd generation 5.7×28 conversion magazine
• Blocked at 10-rounds (10/32 design)
• Durable polymer body
• Textured grip and ribbed design
• High-visibility orange follower
• Easily removable base pad for cleaning and maintenance
• “5.7x28mm” and CMMG logo engraved on side

Pick up a few extra magazines for your CMMG 5.7 AR – you’ll be glad you did!