This is the gas cylinder that I got in my CMP parts kit. I don't know a whole lot about what to look for on them so I figured I'd let some of you guys take a look at it. The only thing that caught my eye was the lip on the upper part of the cylinder was dinged up. I looked and it didn't reach the threads but gets kind of close. I'm trying to figure out if it's serviceable or not so I can get it replaced if I have to. Take a look at the pics and let me know. Thanks.