he SCT Manufacturing Glock Compatible Sub Compact complete assembled frame is going to change the way you build pistols. It is the only frame at this price point packed with this level of features. This is a serialized frame with shooter-oriented ergonomics. Polished stainless steel over molded rails provide the optimal platform that is ready to build. They are made with an industry leading proprietary polymer blend and compatible with Glock 43X and 48 components. Each frame is assembled using a combination of Glock OEM and SCT manufactured parts by a certified armorer. The last step of each frame assembly is function testing utilizing a Glock factory slide checking for safe operation, striker engagement, trigger pull, trigger reset, & magazine function ensuring the end user is left with a frame that needs nothing but a slide assembly right out of the box!