I gotta say these Anderson AR lowers just like Virginia Slim have come a long way baby at least in price not as much in quality. I have two no logo Anderson lowers and probably wouldn't ever buy another Anderson anything , Both of the ones I built are slightly out of spec in the take down pin holes and are so tight you have to tap the pins through the upper with a mallet . I will say this though there is ZERO wobble between upper and lower so you don't ever have to worry about that. They were bought to build beater guns with that I don't care about if they get scratched up and abused so they serve the purpose but still unless you get them smoking cheap I would just assume save the money and get a better quality cheaper upper like an Aero which will at least be in spec.