I made the above post because I was afraid I may have confused you more since you only had a blank post with a line! LOL!! But yes the Horton One inch rings will work just fine on the Excal. I was going into alot of detail cause I did not want to see you spend 33 bucks on a rail kit you may have not needed. Rings only cost 18 bucks and if you did not need the rail you would have wasted fifteen bucks. The 33 dollar kit is what you need and the Horton rings will work.