I used these on my ARMS#38 (for sale here
). They are 0.98" high (from the top of the rail to the center of the scope), so they are the right height for the ARMS rails as well as the other 0.5" high rails from Bushmaster, GGG, etc. That puts the scope just slightly higher than the front sight, but not so high that you cannot get good cheek weld.
They are for 1" wide scopes.
They have been lightly used, but they look brand new. Excellent + condition.
I am selling them for $39 shipped. Pay by paypal or postal money order.