MAX-50 rings are 1" wide at the base, giving them 60% more holding power. Utilizing 4 Torx screws to distribute the load, they provide the maximum amount of holding power while minimizing the chance of damaging the scope. Machined from high grade aluminum as matched pairs and serialized, these Mil-Std-1913 compatible (Picatinny-style optic mount) rings are designed for use with the 50 BMG. Notes:Heavy Duty Rings for High Recoil ApplicationsMounting hardware included