This lock works by locking the slide out of battery which prevents the pistol from being fired. It will fit Glocks with either fixed or night sights.
For Glocks 17,18,19,22,23,24,25,26,27,28,31,32,33,34,35 AND 36
Fits Glocks with fixed or night sights
Locks slide out of battery so handgun cannot be fired
No gunsmithing installation