http://pages.ebay.com/link/?nav=item.view&id=190730699335 Been looking at sights for my ka m4 and came across this in ebay. Just wondering if anyone has used one before. Im very hesitent to buy it as it is ebay. I just like the fact it does have all three sights (acog, reflex, and iron). And it does have some zoom in the acog. Any info on this or a trusted similar product for close to the same price would be great.