I've had one of these for several years - not the brightest scope I own for sure but seems to be a ruggedly made scope.
http://www.natchezss.com/product.cfm...2&src=exrbSrch
Mine is now my grandson's as it's on his new Optima. It has held up well for me after being on a few different muzzleloaders. Hope it does for him as well.
I mention this scope because a lot of folks are always looking for a good, cheap scope and I think this one qualifies.