+1 for ALG. its a spin off of Geissele, his daughters company. comes with a couple of different springs.You're going to want a heavy hammer spring for the x39 primers. I wouldn't go with a light pull tactical trigger. PSA ept 2 stage first thing comes to mind. ALG. BCM PNT is a nice one but not sure if it's available in 2 atage
I recently sold a lower that had a rock river arms 2 stage and it was crisp.