If you're looking for a 2 stage trigger, that is compatible with our UPR10 True Bolt Action uppers, or any other AR15/AR10 then look no further than the Rise Armament "Iconic" trigger. The Iconic by Rise gives you the control of a two-stage trigger and the crisp, clean break of a single-stage trigger. The first stage is a very smooth and light 1lbs with the second stage breaking cleanly at 2lbs. ***We have had mixed results with using the Iconic with our UPR15 uppers. We only recommend it for use with our UPR10 models.***