This has been sitting in the safe for too long. This is for the mount ONLY!! It enables you to mount a mini red dot sight to just about any semi auto pistol with a rail. Here is a link to their website: http://www.umtactical.com/store/p3/UM_3_Sight_Mount.html $50 cash or trade for something below that I can put on one of my future AR15 builds: - Muzzle brake/Flash hider - BUIS (front, back or both) - Lower parts (FCG, pins, etc...) - MS3 Sling - Charging handles - QD end plates or adapters - .223.5.56 magazines - I'm open to just about anything. I'm in Everett, shoot me a PM and lets make a deal.