i have 2 preban colt lowers...one already has an upper on and the other im looking for an upper to mate to it
the problem is i'm not sure if just any upper will fit...i keep reading about small hole/large hole etc and im not sure how you can tell
i dont wanna spend $1000 on an upper only to find out it wont fly on my lower
the unmated lower has holes that look alot like my bushmaster lower...i never like to assume things but should i be ok with ordering any kind of upper if thats the case?
the problem is i'm not sure if just any upper will fit...i keep reading about small hole/large hole etc and im not sure how you can tell
i dont wanna spend $1000 on an upper only to find out it wont fly on my lower
the unmated lower has holes that look alot like my bushmaster lower...i never like to assume things but should i be ok with ordering any kind of upper if thats the case?