On peep-sight options for your rifle, check out Skinner Peep Sights and also XS. I am thinking that one of them makes one that mounts to a standard Weaver scope base. You will usually, but not always, have to also change out the front sight for something higher. If you have some "Redneck Engineering" skills, a Dremel, perhaps some taps and screws, and JB Weld, you can mount many things to a Weaver scope base. MM