12-12-2023, 06:18 AM
my first Grendel too. I wasnt impressed with the adjustable gas block... also had bolt hold issues and the gas block didnt change anything. I was dissapointed to learn the only thing an AGB does is decrease gas flow.
So I ended up replacing the heavy duty buffer spring and buffer for a milspec one and it solved the problem.
I've been curious on the accuracy of the PSA uppers as Im thinking of buying one for a second rifle build. It sounds like yours is grouping 1moa?
So I ended up replacing the heavy duty buffer spring and buffer for a milspec one and it solved the problem.
I've been curious on the accuracy of the PSA uppers as Im thinking of buying one for a second rifle build. It sounds like yours is grouping 1moa?