Great trigger - must use correct striker spring - Zev Technologies Fulcrum Drop In Trigger Kit Black Trigger Pad With Black Safety For Gen 4 Glock 17/19/26/34 DRP-4G9-B-B

I decided to buy this trigger kit rather than the one with that included the Zev striker. This is the adjustable trigger that comes with a 2lbs and a 3lbs striker spring. I installed the trigger kit very easily, and replaced the stock striker spring to improve the trigger pull. I installed the 2lbs spring. When shooting bulk ammo i do not get reliable striker hits and only about 50% of ammo is actually fired. When I called Zev tech support they told me the stock glock striker is too heavy for the 2 lbs spring, and i should either use the 3lbs spring (provided with the trigger kit) or buy the zex striker. All in all the trigger is great, but be aware that if you want to use the 2lbs you should just buy the kit that includes the zev striker.