Lower to Upper clearances (problem?)

[KS63]

I hear you BP. These guys say they do 100% of the machining in house. When I asked them about Colts blueprint tolerance, they said their print says .500"-.5004". So technically to them, my lower is in spec. My Vltor upper fit perfectly in an LMT, LWRC and a S&W lower. I stuck a piece of paper on both sides of the pin and its tight, roughly .003" thick. Perfect. My backup plan is picking up a Noveske Chainsaw lower. Like you signify BP, I hope Noveskes specs are better because their stuff is still going through the Fowler digital height stand. I was trying to give the Little Guy a chance and gambled wrong I guess.

[ray1970]

My backup plan is picking up a Noveske Chainsaw lower.

Just keep in mind the chainsaw lowers are blems. Probably for cosmetic purposes but you never know. Personally, I'd spend a few dollars more on one that met their quality standards and didn't get marked as a blem.