I bought a lower to build. I did not like any of the trigger component that came with the kits or grips. I found a booth, local gun show, that sold lots of parts. I opted for a [ Man-o-man am I gonna get this wrong!], Gieslie [sic] trigger. I did not buy the $35 lower I went all out and got the $65! I have no idea why? I'm being told that there just in not much difference. True? A bunch of guys in my gun smith class fool around with 80% ABS. I think this material will fatigue against the metal parts and will, by design, have a short and potentially dangerous life. I digress. The build was fun and simple and the trigger is awesome. Lower $65, parts and trigger $85. Thoughts?