YHM-230 Gas Block Riser for AR-15 Front Sight
This riser allows you to use a same plane front sight on an AR15 with a railed gas block by raising .325" . Perfect for use with our new YHM same plane Q.D.S. system. Made from aircraft quality aluminum and hardcoated to Mil. Specs. ONLY NEW DESIGN WITH 3 SLOTS ARE ON HAND.