The Replacement Hardware Kit for the Shadow Mount V3.0 for Ruger® Mark™ Series pistols is an excellent way to keep spare hardware on hand for your Shadow Mount. It includes all the hardware you need to secure your Shadow Mount V3.0 to your firearm, and to mount all compatible optics. Whether you're performing routine maintenance or replacing lost hardware, or changing optics, this kit provides a complete set of spare, high quality hardware for the serious user.