Seams all I see when hunting an 18" or 20" AR Bbl. in 300 BO are pistol or carbine length gas systems. My plan is to build something for the grand kids to shoot using my 180 - 200 gn cast. bullets. I'm figuring around 1100 FPS , No suppressor .
Thought I'd ask here before contacting a few that offer AR Bbl's about a longer gas system .
Thought I'd ask here before contacting a few that offer AR Bbl's about a longer gas system .