Was at the range today to work out some gas settings & buffers with a couple of new guns & another rifle, so I shot all 3 for groups.
All guns got the same load: 23.5 gr of AR-Comp under 75 gr Hornady OTM's, LC-16 Brass, BR4 primers.
I'll list the pics & guns in 3 separate posts as I'm not sure how many pics a single post can contain.
The guns are a KAC 18" barrel rifle, 2nd gun is a built rifle with with Viltor MUR upper, 18" WOA barrel, Areo lower; 3rd gun is a newly built gun with an American Defense upper, a Rise Armament 16" barrel with a SIG lower off an older SIG 400.