Just what i needed - Yankee Hill Machine Q.D.S. Gas Block Rail Riser YHM-230

After searching all over the internet I finally found this gas block riser on Optics Planet. It's a little pricey, but still less expensive than buying a quality front sight. Optics Planet seems to always have those hard to find items that I need. Their service is top notch and I always seem to circle back to their site to find what I need. Plus they're the only retailer that always gives a discount of some sort after each purchase.