February 23rd, 2017, 05:13 AM
Join Date: Jul 2006
If you decide to go with a 1 piece scope base, ccop makes one that is steel for 1903a3 and runs about 27$ on ebay. You may luck out with the front hole already drilled in the reciever. If it doesn't line up, it is cheaper and easier to weld the hole closed in the base and re-drill it to fit your existing hole in the reciever. Leupold makes a 1 piece base that has 2 mounting holes in the front that may be an option also.