I have a Aimpoint Carbine Optic (ACO) for sale. I bought it new a few months ago and it has been sitting in the safe mounted to one of my ARs ever since. It has a 2 MOA dot with 10 brightness settings, waterproof, 10,000 hour battery life and made to the quality Aimpoint is known for. Original box and paperwork included. Price is $340 shipped. I accept PayPal ( gift or + 3%) or money order. Thanks for looking.