In 2012, RS Regulate began rolling out the first models of the AK-300 Modular Side Mount System, which now features six fully modular uppers and nine different lowers: a front-biased, a rear-biased, and a full-length lower for most Eastern European AK side rails; a front-biased and full-length lower for Yugo/Serbian rifles; a PSL and and Romanian M10/RH10 rifles; a Century Arms proprietary side rail; and even a rear-biased lower for Czech vz. 58s.
- 30mm Upper Mount
- Common Usage: Aimpoint and other 30mm optics
- Product Dimensions: 1.00 x 2.08 x 2.23 inches
- Weight: 1.68 oz
