17 years.
The csgo Doppler Bayonet is a 17-year-old skin. The blade is green in appearance, like emerald. It is now rarely available on the BUFF trading platform.
"Counter-Strike, Global Offensive", referred to as CS, GO, is a first-person shooting team competitive game developed by Valve. CS and GO have attracted much attention from Chinese players since they were released overseas in 2012.