I recently bought this LPK from PSA to finish out a 300 black pistol build I was working on with the eventual intention of it being an SBR when the approval comes through. My reason for posting though, is this: I am very impressed with the trigger that comes with this enhanced parts kit. I don't know if it's any different than the PSA standard parts kit mil-spec trigger but the break is one of the cleanest AR triggers I am aware of. Now, don't get me wrong, it's still pretty heavy at 6lbs but it should be. I can take the extra weight if the break is clean and the pull is nice and smooth. One thing I failed to mention is the smoothness and length of pull. It is much shorter than most mil-spec AR triggers and very smooth with very little over travel. I have shot triggers that cost $150 that weren't half this trigger. As impressed as I am with it, i m very tempted to take it out and clean it up, polish all of the friction surfaces and have another go. HIGHLY RECOMMENDED.