With 10 round capacity and featuring the same profile and size as the 40rd FourSix™ magazines and similar exterior dimensions to most 30rd 5.56mm AR15 magazines, the patent pending CMMG® 4.6x30mm magazine is designed to seat into a standard AR15-sized magwell in order to feed the CMMG® FourSix™ upper receiver along with either a CMMG® Mk4, or other AR15 lower group of your choice. Designed exclusively to feed the 4.6x30mm cartridge.
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CMMG® aims to please, that’s why every CMMG® product is backed by their Lifetime Quality Guarantee against material and workmanship defects.
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