The AIM Tri-Side Rail Extend 25.4-30mm 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. Allon key is no 

included so please be prepared to have one ready if you wish to open the mount ring to install your sights. 

1x AIM Tri-Side Rail Extend 25.4mm-30mm Ring Mount