Looking for someone who can manufacture custom front sight riser block for 3/8" dovetail exactly like Williams Sight Co, manufactures ($5-6).   Already called them, won't do it.  Riser black needs to be .57 (versus .340) wide and .35+ (versus  .25) high.  Here's picture on Midways website - http://www.midwayusa.com/esearch.exe/search?category_selector=all_products&search_keywords=williams+riser+block&Click+to+Begin+Search.x=15&Click+to+Begin+Search.y=12.  Thanks.

www.midwayusa.com/esearch.exe/search?category_selector=all_products&search_keywords=williams+riser+block&Click+to+Begin+Search.x=15&Click+to+Begin+Search.y=12

same link, just easier to get to.

Talk to Derrick Martin at Accuracy Speaks. com. When I worked there I made several custom front sight blocks of varying dimensions. Charles the Gunsmith.  

Thanks.  I really appreciate the response.