| YHM Single Rail Gas Block Assy 0.750 YHM-9385A & 0.625 YHM-9386A This gas block replaces your existing front sight and allows the use of dovetail mounted accessories. Installs easily with two cap screws onto barrels of .750 or .625 diameter under the front sight. Purchase the YHM dovetail mounted flip front sight (YHM-9584) or the solid front sight (YHM-9495) to retain your iron sights. Made from high quality steel and finished with a Mil. Spec. phosphate coating. |
