Paralax is relatively small
The build quality is robust, and the reticle is shown in photos
The sight holds zero on a GHK AK and a TM saiga 12k(airsoft), but is not designed or tested to withstand recoil from a real ak
It takes LR44 button type batteries
Package includes OKP-7 working replica, a sight cover, the carrying pouch, a piece of lens cloth, the instruction manual, and an adjustment tool