Crimson Trace Corporation Laserguard, Fits Glock 19/26/36, Black, Front Activated 01-2340-1 The Crimson Trace(R) laser sight series for GLOCK compact and subcompact pistols provide a tactical advantage in a compact package. Instinctively activated with a normal firing grip" the Lasergaurd(R) leaves the best attributes of your GLOCK unobstructed and unaltered. The LG-436 fits most holsters for subcompact GLOCKs and features a master on/off switch so you can train with or without laser sighting.