CMMG MkW-15 Lancer L5 Advanced Warfighter 458 SOCOM 10-Rd Black Polymer Detachable Magazine

The CMMG MkW-15 Lancer L5 Advanced Warfighter is a purpose-built .458 SOCOM detachable magazine engineered to feed reliably in AR-15 platform rifles chambered for the big-bore cartridge. CMMG takes the proven Lancer L5-AWM magazine design and modifies it specifically for the dimensional demands of .458 SOCOM ammunition, giving shooters a factory-correct feed solution for their MkW-15 or other AR-15-pattern .458 SOCOM builds.

This 10-round magazine features an impact-resistant polymer body in a non-reflective black finish, paired with hardened steel feed lips for consistent presentation across a wide range of .458 SOCOM loads. A high-visibility yellow anti-tilt follower keeps the stack aligned and aids in quick visual round-count checks at the range. The body is built on a modified 5.56 magazine platform that has been specifically reworked and optimized for the larger .458 SOCOM cartridge case, delivering reliable feeding where standard 5.56 magazines fall short.

Designed and assembled in the USA, the MkW-15 Lancer L5 Advanced Warfighter magazine drops directly into standard AR-15/M16-pattern magazine wells and is the same factory magazine CMMG ships with their MkW-15 ANVIL rifles. Whether you are running a CMMG MkW-15 build or any other AR-15-pattern .458 SOCOM upper, the CMMG 48AFC44 delivers the fit, function, and durability that big-bore shooters demand.