The KynSHOT RB5001 is a hydraulic recoil buffer engineered for AR-15 rifles that use a Mil-Spec rifle-length A1 or A2 fixed stock buffer tube. It installs as a simple drop-in replacement and is designed to pair with standard rifle buffer springs. Constructed from stainless steel, the RB5001 is specified for AR-15 rifles in 5.56/.223 and is optimized for fixed-stock configurations with an internal buffer-tube depth of 9.5″.
Key Specifications
- The model is RB5001.
- Designed to fit Mil‑Spec rifle‑length A1/A2 fixed-stock buffer tubes with an internal depth of 9.5″.
- Material and construction are listed as Stainless Steel.
- Intended compatibility is listed for AR-15 rifles in 5.56/.223.
- Product type is a hydraulic recoil buffer and functions as a drop-in replacement.
- Can be paired with any rifle buffer spring.
- Reported overall dimensions are 1.25 x 4.70 x 7.90.
- Finish/color is given as Stainless.
- Listed as an AR-15 accessory and noted for use with full-length fixed stocks.
- Condition is listed as New.
Engineered for shooters who prioritize control and consistent cycling in fixed-stock AR-15 platforms, the RB5001 offers a stainless-steel build and straightforward installation as a drop-in hydraulic buffer. Its compatibility with standard rifle buffer springs and Mil‑Spec fixed-stock tubes makes it a practical upgrade for reducing felt movement and improving follow-up on the range or in training scenarios.
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