RS Regulate 1913 Long Picatinny Rail Modular Upper

RS Regulate AK-300 Modular Upper System

RS Regulate's AK-300 Modular Side Mount System represents a thoughtful engineering solution to the challenge of mounting modern optics on AK-platform rifles. This 1913 Long Picatinny Rail modular upper is the foundation of a truly versatile mounting ecosystem.

Design Philosophy

The modular design allows shooters to select the upper that best suits their rifle's configuration and shooting preferences. The zero MOA Picatinny mount accepts any standard optic designed for Picatinny rails, giving you complete flexibility in your choice of sights.

Compatibility

RS Regulate's system accommodates a wide range of AK variants:

• Eastern European AK rifles – Front-biased, rear-biased, and full-length lower options
• Yugo/Serbian rifles – Front-biased and full-length configurations
• PSL and Romanian M10/RH10 rifles – Dedicated mounting solutions
• Century Arms proprietary side rails – Specialized compatibility
• Czech vz. 58 rifles – Rear-biased lower option

Finish and Quality

The matte black finish provides a professional appearance while resisting glare and reflections. This is precision engineering designed to last through years of serious shooting.

The Modular Advantage

With nine different lower options and six fully modular uppers, the RS Regulate system grows with your needs. Whether you're building your first AK or maintaining a collection, this modular approach eliminates the need for multiple mounting solutions.