Shop › MAG CMMG MKW-15 ANVIL 458 SOCOM 10RD MAG CMMG MKW-15 ANVIL 458 SOCOM 10RD $29.95 CMMG Magazine, MkW-15, 458 Socom, 10 Rounds, Polymer, Black, **Mfg Warning: Capable of holding 11 Rounds if Forced 48AFC44 Quantity: Add To Cart Added! CMMG Magazine, MkW-15, 458 Socom, 10 Rounds, Polymer, Black, **Mfg Warning: Capable of holding 11 Rounds if Forced 48AFC44