Guys-
I'm about to purchase a pre-ban Colt 20" AR in very good condition. The upper is an HBAR A2
My question is - if in the future I decide that I'd like a Carbine Flattop - will another manufacturer's upper fit the Colt lower? With most manufacturers I know they would, but is the colt front screw a larger diameter than the typical front pin used by Bushmaster, RRA, etc. etc.? I'm sure a new Colt flattop would cost a lot more than the same product from one of the other brands
Appreciate any insight, thanks!
I'm about to purchase a pre-ban Colt 20" AR in very good condition. The upper is an HBAR A2
My question is - if in the future I decide that I'd like a Carbine Flattop - will another manufacturer's upper fit the Colt lower? With most manufacturers I know they would, but is the colt front screw a larger diameter than the typical front pin used by Bushmaster, RRA, etc. etc.? I'm sure a new Colt flattop would cost a lot more than the same product from one of the other brands
Appreciate any insight, thanks!