so I bought a black friday PSA upper and finally got it to the range. It's their 16" premium chrome lined 1:7 twist upper. I topped it with a a burris ff2 2-7x35 scope and put my first 6 rounds inside an inch at 90yds using a random handload I tossed together (55grn midway dogtown bullet over 22.5grn of ramshot x-terminator) The last 4 of the 10 I loaded for testing were fired rapidly into the creek to test cycling and for fun. I'm not a huge fan of the AR15, but it's just hard to not like something that shoots like that. My RRA predator pursuit upper with 16x vortex viper scope didn't shoot any better. (same lower. trigger is stock parts, but running the 50 cent trigger job with clipped springs and a set screw) so congratulations to psa.