ABOUT SKULL LOWER AR

A tough coat anodize finish per MIL-A-8625, the anodizing model for product for most military and aerospace goodsAlong with the Gen2 Jack9 we also enhanced the mag properly, beefed up the ejector/journal halt (and built it adjustable by means of established screws, to support slight geometry distinctions across differing types of 'Glock' mags) and