[TheAngrySniper]

Now, the reason I am posting this in the newbie tank is because my knowledge of gas operated Airsoft items is very, very small.

Recently, I have purchased an Impact grenade. I love the little thing, but I have noticed that after I fill it, there is a audiable hissing noise. Which then gets worse once the pin is pulled. Is it possible all it is doing is venting excess gas? I don't think it is supposed to vent gas once the pin is pulled, because in the video demo they use it as a trap where it is propped on a door handle for a lengthy period of time.

Any help or feedback is apprecated.

~Angry