Yankee Hill Machine Low Profile Single Rail Gas Block YHM-9385A .750 - Now Available in YHM-9386A .625
This gas block replaces your existing front sight and allows the use of dovetail mounted accessories. Installs easily with two cap screws onto heavy barrels of .750 diameter under the front sight. Purchase our dovetail mounted flip front sight (YHM-9584) to retain your iron sights. Made from high quality steel and finished with a Mil. Spec. phosphate coating. Single Rail Gas Block .750 (YHM-9385A) Barrel Diameter Model.