My interest was piqued in a CMMG AR-15 22LR upper lower combo. I'm thinking about one day moving in to 9mm and maybe 223. The guy at Ammo Bros told me that by swapping out the bold assembly and adding a bullet button it wouldn't have a problem.
Is it as simple as that? It's sort of hard to search for information about 22lr marked lowers.
Is it as simple as that? It's sort of hard to search for information about 22lr marked lowers.





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