Vapo, I had either a 93 or a 38 (it' s my fiance' s rifle, so I forget which now) customized/sporterized mauser, it was a german manufactured spanish mauser-i.e. it was a .308, but it had a sporterized stock and had been rebbled to a Springfield dual groove, AWESOME shooter good days = sub .5moa at 100yrds. When I got it, it wasn' t set up for a glass, just had weaver open sights, I paid a total of $75 to bend and shape the bolt handle, and install a new cocking piece and safety (someone had chopped the cocking piece to reduce the amount of firing pin travel to about .5" , now it' s back to the good ol' mauser 3" stroke!!!) AND drill/tap, and install scope mounts, PLUS mount and bore sight the glass. Point is, it may not cost all that much to get your bolt converted to wrap around a glass. My smithy did a great job, only problem is that when I switched glasses to a variable power, the dial is bigger than the old bell was, so if I really cycle fast, the bolt handle will just tap the dial, no big thing, but it' s something.