Gamo Black Knight: Spring or Gas?

[Shooter177]

Hi, how can I tell if this Gamo Black Knight is spring or gas? Dealer didn’t know and Gamo hasn’t responded to several requests.
Rifle was purchased about 12 months ago and there’s no written indication on rifle or paperwork.
Thanks

 

[MileHighAirGunner]

View attachment 268713

Hi, how can I tell if this Gamo Black Knight is spring or gas? Dealer didn’t know and Gamo hasn’t responded to several requests.
Rifle was purchased about 12 months ago and there’s no written indication on rifle or paperwork.
Thanks

According to this website it’s using a spring

Gamo Black Knight .177 Caliber Air Gun | Academy

Great for pest control and recreational shooting, the Gamo Black Knight .177 Caliber Air Gun is equipped with a 4 x 32 scope and features a polymer-jacketed ...

www.academy.com