RS AK-306 Lower Modular Mount AK-306 Modular Lower for Yugo Pattern Kalashnikov Rifles places optics in the optimal over-bore cowitness location RS AK-300 Modular Side Mount System compatible with all AK-300 optic mount uppers Under 3.0 oz 6061-T6 MIL-A-8625 Type III Hard Anodize Black full-length lower modular mount "A superbly designed and extremely well made mount that the AK market has been in need of for a very long time. Serious AK fans look no further for your side rail mount needs!" - Larry Vickers, Vickers Tactical I recently received the Gen 2 mount, and impressed is an understatement. The new rail is far more refined and shows what American ingenuity and manufacturing is capable of. The RS Regulate mounting system is becoming popular with contractors and other professionals who are being issued an AK overseas. Overall, I have found the RS Regulate system to be a simple to use and easy to mount package that is very rugged and reliable. -Darryl Bolke, Modern Service Weapons