RS Regulate Modular Upper Features The RS Regulate Modular Upper is purpose built to accept Aimpoint Micro Primary Arms Advanced Micro and Holosun optics that share the common removable base footprint. Because it is designed around that specific mounting standard the optic sits low and secure without the wobble or shift that generic mounts can introduce over time. Its compact footprint of 1.75 by 1.81 by 0.89 inches keeps the profile tight to the receiver which matters on a carbine where every ounce and every inch of rail space counts. At just 0.88 ounces the upper adds negligible weight to the overall package. This upper is one piece of the larger RS Regulate AK-300 Modular Side Mount System a design the company has continually expanded since its 2012 introduction into six uppers and nine lowers covering nearly every AK pattern rail in common use. That modularity means this same upper can be paired with the correct lower for a standard AK side rail a Yugo or Serbian rifle a Romanian PSL or M10/RH10 or even a Czech vz. 58. The matte black finish matches factory AK furniture and resists wear from field and range use alike. For AK shooters standardizing on Aimpoint Micro footprint optics this mount is a dependable foundation for sale at GrabAGun. RS Regulate Modular Upper Specifications Manufacturer: RS Regulate Model: Modular Upper Type: Optic Mount Color: Black Finish: Matte Compatible Hosts: Aimpoint Micro Primary Arms Advanced Micro Holosun Fits: AK-47 Universal Dimensions: 1.75 x 1.81 x 0.89 Weight: 0.88 oz Available At: GrabAGun