This UTG AR-15 Carry Handle Rail Mount with 12 Slots Fits Picatinny/Weaver Rail, with Stanag and Weaver Dimensions. This AR15 Carry Handle Rail Mount is superior mil-spec quality and designed for serious use at a fraction of the cost. The AR-15 Picatinny rail mount for carry handle accepts all standard Picatinny 1913 or Weaver optics, such as red dots, scopes, etc. The AR-15 carry handle picatinny rail is a solid machined construction with a black matte finish. Rail dimensions include all Picatinny, Weaver, and STANAG interfaces. It takes Standard Weaver Rings or STANAG Rings and has 12 slots. The See-Thru Mount seats neatly inside the carry handle and is secured with a knurled thumb nut. UTG Lifetime Warranty.