Police Trade in Aimpoint CompM4s red dot optics with Larue Tactical LT659 mounts. 2 MOA red dot. All optics have been tested and function perfectly. Expect scratches, wear marks, dings on the housing and mount. Glass is in perfect shape. These are built like tanks and retail for over $800 new. AA battery not included. Sold as is, no returns/exchanges. All sales final. Item pictured is representative of the one you will receive. These are "B" grade units. They will have more wear, may have missing caps/covers, or other small missing parts. All work.