Does the "HFC M80 Combat Commander Gas Non Blow Back Airsoft Pistol Black" need a propane tank adapter?

Okay, so I found this awesome gun at Shorty USA called the "HFC M80 Combat Commander Gas Non Blow Back Airsoft Pistol Black", and I was just wondering if you needed a propane adapter to load it up with gas. It's going to be my first gas gun, and the reason I ask this is because on other gas guns, the adapter is recommended, but on this gas gun, it isn't. Check it out (or don't) and tell me what you think.