This pocket tool has 5 necessary tool elements for assembling and disassembling your glock.It features a 3/32" punch tool, 3/16" hex nut driver, a magpopper tool, and a bottle opener.The corners of the tool handle are used for centering the frame pins in the frame.The pocket on the side of the tool acts as a third hand and holds the striker assembly while you disassemble it.Type: Gun Tool