The CMMG-modified Lancer L5-AWM takes this top of the line magazine and perfects it for the wide range of 458 SOCOM on the market, by modifying the way the feed lips hold the 458 SOCOM without machining or weakening the steel feed lips. Laser Engraved 458 SOCOM. 10 round capacity. NOTE: The magazine has been modified to function properly with 10rds of 458 SOCOM, but will still hold 30 rounds of 5.56 ammo. We cannot ship this magazine to any location that restricts magazines with capacity greater than 10 rounds. FeaturesHardened steel feed lipsImpact resistant polymer bodyTop of magazine catch is steelNon-tilt followerConstant curve internal geometryStainless steel springAggressive texturing on body for positive gripSlim body designSlide on bottom, easy to dissemble