Spuhr 34mm SP-4001 ISMS Mount. 1.180 Height. 0 Cant. I ran a lapping bar through the mount when I received it and it was as close to perfect as you can get. I only used this for approx. 50 rounds. The mount is a little low for my application. $335.00 Shipped 920-210-7860 firstname.lastname@example.org Email direct for fastest response.