147 grain ZQ1 7.62 and 167 grain HP Ultramax .308 @ 50 yds. used the MEPRO site with magpul back-ups and a 3x eotech magnifier. didn't have to adjust the gas systems for the different rounds. ZQ1 grouped tighter. both cycled flawlessly. bang zing, bang zing.
Looks like the 1x4 Burris Euro Diamond and it's renamed counter parts are popular on these. Mine was 1494 OTD at the local GS. The only thing I have left is the forward grip and a Redfield Revolution 4x16 on the same quick release mount the Burris is on. Then my sonn wants me to carry it in a guitar case. I think I going to do it.