I’ll move it in there, but there are several threads you can start reading through as well.Ahhhh poop.......thanks and sorry about that waylon.
I have 2 PSA 9mm uppers, 10.5" and 4.5". Both are exceptionally accurate.
My SBR lower is an Anderson with colt style mag block. Never an ounce of trouble.
Is there a difference with PSA's PCC uppers that accept Glock mags or is just their BCG?
Because the Colt pattern ones have been running well for decades...The Glock mag ones are where any innovation is happening currently. Foxtrot Mike has a forward side charger I might look hard at if buying complete.
The gas gun Sig MPX (not really an AR) and CMMG Guard would also warrant a look for factory guns. They solve the violent action of straight blowback guns.