You can use a Basner for a MarkX mini mauser. It willl take some work. Bolt holes line up. Bolt handle ejection port and bolt stop needed moved back about 1/4inch. Lug need to be opend up and the tang widened and shortened. Need to fill about an 1/8 around the front two thirds of the bottom metal. Get some Marine Tex grey and have at it. Go slow mine turned out pretty nice. Mine was already molested, I bought it for the action.