20″ 6mm ARC LIBERTY BARRELS® Button rifled barrel 1-7.5 5R SS

20″ 6mm ARC
LIBERTY BARRELS® Button Rifled barrel
Med contour
Rifle length gas
.750 gas block diameter
1-7.5 twist 5R
5/8-24 threaded muzzle
416R Stainless steel
w/ head spaced bolt