Overall this is a great pistol but it does have some problems that sorta take away from it's greatness. Things like a wobbly outer barrel, poor quality threaded tip, the lack of stable hopup adjustment and the "full auto" mode it tends to slip into when low on gas.
I've seen youtube videos where a gas test with propane got over 100 rounds in one magazine, however from my experience with Green Gas and two separate magazines, you get about 35-40 shots (about 1 and a half clip's worth)
I think my biggest issue with this gun is the fact that when it's low on gas, it turns fully automatic. My cousin likes to say that when it happens it's "Raffica is showing." I think it has something to do with there not being enough pressure for the slide to complete a full cycle. Anyway, this can be looked at as a pro or a con. I say it's a con since I like to have my guns as realistic as possible, but other people might find it useful to tell when a mag is about empty of gas. It also could get you in trouble if you play on CQB arenas that don't allow for full auto.
One other negative is the hopup. Most people will argue there is none, but I have found a small screw located on the inner barrel. However, even after adjusting this, the hopup is still high. Not only that, but the screw sets back into its original position after a few shots making the hopup higher and higher. This makes this gun very poor for firing long distances since the BBs will always arch upward at about 40ft out.
However, other than those negatives, it shoots hard, kicks well and is very accurate close range.
-Full metal, realistic, heavy.
-Easy to disassemble.
-Comes with a nice barrel extension.
-Accurate for close range encounters.
-Barrel extension will break orange tip; don't use it with this gun.
-Outer barrel wobbles. Doesn't hurt the accuracy though.
-Magazines don't hold a lot of Green Gas; about 1 and a half clip's worth (35-40 shots)
-When gas is low in a mag, the gun will slip into a "fully automatic" mode.
-Gun seems to be stuck on on a high hopup setting.
Rating: [3 of 5 Stars!]