I have a 511 EO Tech holographic sight for sale. It runs on 2 1.5V N batteries. It has the protective hood, 12 brightness levels, auto shut off of 4 or 8 hours (pending how you turn it on) battery gauge sensor and standard EO Tech reticle. Sight has been on my AR 15 for 2 years, but I am making gun into a longer range varmit gun, so I am installing a high power scope. Unit sells new for over $400. I will ship it to your door for $300. I wish I could post a picture, but can't figure it out, and don't have the time to keep messing with it. If you need a picture or more information, PM me with an email address and I will send you what you request. Thank you.