16" ghost problem
I cant figure it out.
My 16" upper will not function on my RRA lower.
The 16" functions flawless on my other lowers.
My 20" AR uppers run perfect on my RRA lower.
I sent the 16" upper off to ADCO, it ran fine. They found no problems.
I have new buffers and springs from White Oak.
As soon as I put that 16" on my RRA lower, I get 40-50 FTE's out of 100 trigger pulls. I have a commercial 6 pos collapsable stock. As I said, if I put my 20"ers on the RRA lower, they function fine. My 16" runs perfect on my other lowers as well.
Thoughts?
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