Personally, I would look at a magnum, if you aren't in too big of a hurry. Or at least get the adapter to make it one. Having a tank at the front of it makes for a VERY front heavy gun.
And don't think adjusting the velocity on them is an easy job. You have to basically insert a special screwdriver down into it and turn the valve from the 12 oclock, to the 3 oclock, to the 6 oclock or the 9 oclock, depending on how fast or slow you need to go. Hitting 280 ft/sec exactly normally doesn't happen. Most of the time it seems like it is at 260 or 300 depending on how you have the valve set. Once it is there though, 90% of the time, you won't need to adjust it again. And run c02...not compressed air. They don't like air.
This post has been edited by elraido: 08 March 2013 - 04:07 PM