Yankee Hill Machine Q.D.S. Gas Block Rail Riser YHM-230. Made from aircraft quality aluminum and hardcoated to mil-specs. Specifications for Yankee Hill Machine Q.D.S. Gas Block Rail Riser YHM-230: Mfg Item Num: YHM-230 Type: SIGHTS/OPTICS -...
Yankee Hill Machine Q.D.S. Gas Block Rail Riser YHM-230. Made from aircraft quality aluminum and hardcoated to mil-specs. Specifications for Yankee Hill Machine Q.D.S. Gas Block Rail Riser YHM-230: Mfg Item Num: YHM-230 Type: SIGHTS/OPTICS -...