Knight's 30mm Scope Mount - PN:24755 This KAC 30mm 1-Piece Scope Mount is constructed of lightweight aluminum and is compatible with any Picatinny-type top rail. It is the scope mount that was developed for use in the M110 SASS rifle package. Attaches via a pair of 1/2 bolts. Available in Black or Taupe. Ring Size: 30mm Ring Height: 1.5 Material: Aluminum