this is a 3 piece Glock disassembly tool kit. 1) Magazine Takedown Tool; this is the easiest and fastest way to disassemble base plates from Glock mags for cleaning and inspection. 2) Front Sight 3/16" Hex Tool; makes installation and removal of front sights so easy. The strong inbuilt magnet stops the screws from dropping and getting lost. 3) Pin Punch Tool; is for removing pins on all Glock pistols. Magazine tool is compatible with Standard Glock 9/40 Models: G17, G19, G20, G21, G22, G23, G24, G25, G26, G27, G28, G29, G31, G32, G33, G34, G35, G36, G37, G38, G39, G40, G41. Please note: this mag tool does not work on the Glock 30 round magazines or extended type base plates.