The VPRS-15 is a precision-engineered variable pitch recoil spring system designed for shooters who demand measurable performance. Built to optimize energy distribution throughout the cycling process, the VPRS-15 delivers smoother operation, reduced felt recoil, and improved platform stability under rapid fire.
Unlike standard linear springs, the variable pitch design manages bolt carrier velocity more efficiently, helping reduce excess wear while maintaining reliability across a wide range of ammunition types. The result is flatter shooting, faster follow-up shots, and a more controlled rifle — without compromising durability.
Manufactured to tight tolerances using premium 302 Stainless Steel, the VPRS-15 is built for hard use in duty, competition, and serious training environments.
The buffer weight must be installed in the side with the tighter coils. The wider coils should be mated to side towards the rear of the buffer tube
