Airsoft clone ta11 acog (real acog is a 3.5x35) this one is 5x35. Has clone rmr mounted. Perfect optic to complete m27 clone rifle or m249 load out (used by USMC on their m27 and m249) don’t get this confused with the more common 4x32 ta31 clones. This has a red horse show reticle like the issued ones. $100 takes it. Very clear optic. Took me almost $200 just to make this set up.