Flexinnjohnny

Thank you. i was searching before i posted but couldn’t really find anything about polymer 80%. But I’ll look some more. thanks again.

Hello all, a little background on myself, I’ve hunted and fished my entire life. Been around all kinds of guns except for custom build “AR’s”. So a buddy of mine got into builds a couple years ago and i helped him build a couple ar15’s from 80% lowers. long story short, im looking for some guidance on building my .308 from a 80% polymer. will most uppers work with a polymer 80% lower? if not, which upper is the “ most compatible” with 80% lowers.? im really new to the builds, so if you could bear with me. thanks in advance. hope all is good in the hood.