The Apex Armorer's Block is a polymer bench block for pistol disassembly, assembly, and pin and punch work. It includes punch-alignment holes and a finish-protecting surface, and it works alongside Apex trays and blocks, which are sold separately. Features: Polymer pistol armorer's / bench block Punch-alignment holes Finish-protecting surface Compatible with Apex trays and blocks (sold separately) Supports S&W M&P and Glock-model pistols. This is a bench tool, not a firearm part. GLOCK is a registered trademark of GLOCK Inc. 3CR Tactical is not affiliated with, endorsed by, or sponsored by GLOCK Inc. Any reference to GLOCK products is for identification and compatibility purposes only.