750-stainless-low-profile-steel-clamp-on-gas-block
750-stainless-low-profile-steel-clamp-on-gas-block, Mil-Spec dimensions.750 diameterHardened Steel constructionStainless Steel FinishIncludes roll pin, 2 set screws and Allen wrenchNote: Not designed for bull barrel mounts Fits: AR .750" barrels