Well, I got my lowers and ordered lower build kits from PSA. I got them about a week ago.
I finally sat down tonight and put one of the lowers together. It took me about an hour. If I hadn't been watching the UFC, and if I hadn't shot the pivot pin detent across the room and spent 20 minutes looking for it, it would have taken about 20 minutes. Everything (except the pivot pin detent) went together without any trouble, none of the roll pins gave me any difficulty starting, all the holes in the lower were clean without any burrs or extra material.
I would highly recommend the PSA receivers and LBK.
I am going to start to putting together a Double Star AR-15. No it's not my first AR but I am actually gonna piece it together. I will post when finished at end of month.
IT WORKS!
Ordered a stag arms upper and put it together. Took it to Michigan with me deer hunting and during a break in the action (yeah, right, I didn't see squat) I tried it out. Loaded her up and.....click. WTF? cycled the action and....click. Look at the primers, light strikes...hmm. then it dawns on me, I never cleaned the BCG..oops, a quick cleaning and try again.....bang. bang. bangbangbangbang! Bwaahaha.