Bought last fall when I got my first airgun because I knew I would need one. New to airguns at age 80 but took to it quickly and bought my second, a Zelos shortly after. That's when I understood why I needed a chrono. Seemed like there should be an easier way, especially at the range but expensive versions were not an option on my budget so bought a Nate chrony which nicely fills the bill. Nothing special about mine among the others listed but I did add some wooded dowels to use as a guide when metal rods and light diffusers not needed. The Manfrotto tripod is basically new, only used for this application. Adjustable ball head and sturdy locking mount. Will ship all to CONSUS for $125.