I am thinking about selling my vulcan. 22. It has after market smooth twist on it and aftermarket shroud. It's all been done by Ernest rowe so it done right. The guns berral is 2 inches longer than the factory berral. I did this for extra shot count. It get like 75 shots per fill 18.1 grainers 900FPS it'll shoot them as high as 955. The gun shoots really well half in at 50. It will come with a reg tester and I'm going to be putting a brand new reg in it. Reason for that is I had tested my reg pressure but I didn't push the reg to the back of the tester all the and pressurized it. When I did this it stripped the first 2 threads off my reg. It didn't hurt it I get very constant shots shots you couldn't tell unless you looked at it. I just don't wanna sell something to someone that's not perfect. But that being said what do you think it's worth?