Brand new Pull Weight: 4 LBS The GLOCK Performance Trigger meets a different set of criteria for those looking for a lighter trigger pull and ergonomics in a performance setting, all while utilizing a newly designed flat-faced trigger and maintaining the same safety features of the GLOCK Safe Action System. Fits: G17Gen5, G19Gen5, G19X, G26Gen5, G34gen5, G45, G47. The GLOCK Performance Trigger will not come installed on any factory models. It is available as an accessory only and must be installed by a certified GLOCK Armorer.