My latest build. White Oak 1:7 18" SPR barrel with Clark free float tube built on a White Oak upper and Stag lower. RRA bolt and carrier. JP adjustable stainless steel gas system. Ergo grip.
Jewell trigger breaks at about 2lbs. With the Benny Hill/Triangle Shooting comp you can watch the hits in the scope....
Every White Oak barrel I have had will do .5 MOA.