The AIM Tri-Side Rail Extend 25.4mm Ring Mount Type 1 is a military styled mount with simplistic operation, which is to hold your sight as well as a additional accessory on top of the rail on the mount. It drops right onto an accessory rail with a simple screw type rail attachment bracket without any tools required. One of its key feature is the tri side rail extension which enables the user to add more accessory to gain a tactical advantage. 

ring tops feature Picatinny tops for mounting additional accessories. ring top feature picatinny for mounting laser flashlight and compact red dot and so on accessories