Kalashnikov USA (not related to Russia's Kalashnikov Concern) got their CORE-1 Red Dot Sight available at their store... "Kalashnikov USA is proud to introduce our military grade CORE-1 – 2 MOA Red Dot sight provides fast target acquisition for users by using the unlimited eye-relief and the aligned aiming point reflected on the collimated lens. The fully sealed and waterproof forged 7075-T6 housing supports users to carry out their missions in the harshest environments. It features high-quality lens coating for excellent light transmission and super low distortion along with light-weight and compact size to reduce user’s fatigue and visual disturbance. This optic is currently in use by the South Korean military and special forces units."