The KynSHOT RB5020SS is a hydraulic recoil buffer developed for competition pistol-caliber carbines (PCCs) and AR-9 platforms. It is engineered to reduce bolt travel for faster sight recovery and quicker follow-up shots when used with lighter 9mm competition loads. Constructed of stainless steel, the RB5020SS was produced in cooperation with Blitzkrieg Components and configured for a short-stroke competition action. Note important compatibility and setup details below.
Key Specifications
- The model is RB5020SS.
- The product type is a hydraulic recoil buffer.
- The primary material is stainless steel.
- Designed to fit AR-9 platforms.
- The buffer shortens bolt travel by 1.3 inches when installed in a standard AR-15 carbine buffer tube (per manufacturer).
- The buffer shortens bolt travel by 0.5 inches when installed in an AR-10/A5 carbine buffer tube; this can be increased with spacers (per manufacturer).
- The damping level is intended for lighter, competition 9mm loadings for optimal performance and service life.
- It can be used with PCCs that accept an A1 or A2 rifle-length fixed stock with an internal depth of 9.5 inches (per manufacturer).
- Using an AR-15 carbine buffer tube may require a modified bolt to properly reset the trigger; using an A5 buffer tube is recommended with an unmodified bolt (per manufacturer).
The RB5020SS is a purpose-built option for competitive shooters and PCC owners seeking a short-stroke hydraulic buffer that reduces felt movement and speeds follow-up accuracy when paired with appropriate 9mm loads. Its stainless construction and competition-oriented damping profile make it suitable for match and high-speed transition work where controlled, repeatable cycling is desired.
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