A few posts down from the top.

http://www.24hourcampfire.com/ubbthreads/ubbthreads.php/topics/3437660/1


A couple of caveats. You will probably need to shorten the two attachment screws to attach the sights but that just takes a few minutes work with a dremel or file.

Also, make sure you can get the two rear screws out of the rib before investing in an XS sight. You'll notice the rear screw sits even with the rear scope mounting scallop. Before mounting a scope those screws come out easily enough, but once you mount a scope and screw the ring down tight that physically squeezes the rear rib around the screw and locks it in place. And I'm not talking farmer tight, just normal tight as you would for any ring mount system. It is a soft, allen head screw worthy of a Tikka ring and is easily stripped out. As they say, "don't ask me how I know".

Gunnery, gunnery, gunnery.
Hit the target, all else is twaddle!