'coaspen' - To install a magazine-cutoff on your Krag, first you will have to remove the 'fragment' of shaft from the cutoff hole. This likely can be done by carefully driving it out from the front with a small punch. (Photo showing access to front of cutoff shaft).

BTW - All U.S. Krag barrels, (rifle & carbine), have the same taper and rear-sight hole location.

You can remove the 'plug' in the sight hole by center-punching it, carefully drilling a small diameter hole into its 'shank', lightly tapping a 'jeweler's' screw-driver into the hole for a friction fit, and simply unscrewing the plug. A little penetrating oil helps.

You may have to locate a Krag 1902 sight screw. (Original Krag sight screws have a .156" shank and 30 TPI). S&S Firearms, Glendale, N.Y. has replica Krag screws and some parts. Their Catalog is viewable online.

There are some parts vendors listed in the KCA classifieds. Parts show up on ebay. I can probably help you with parts if you get stuck.

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