Single Rail Gas Block
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 our dovetail mounted flip front sight
(YHM-9584) or our solid front sight (YHM-9495) 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) $67.00 
Single Rail Gas Block .625 (YHM-9386A) $67.00
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