All American, Smart Parts Stainless Steel, CP 2-piece, Freak
2k1 cocker at 260psi
Anything other than BE or any other large bore paintball.
Stainless steel control bore
Interchangable fronts and backs
Hard to clean porting
Weight of the stainless back
Needs backs over .690" bore
I happened to pick up this barrel when I went to my local paintball store to get a CP barrel. They had various JT barrels so I decided to try it out. I bought the 14" front for it and a .690" back.
I've used this barrel for 2 days of play and put roughly 4000 TC Viper paintballs through it without any problems. I broke a ball in the barrel once and after squeeging my barrel, it went right back to performing excellent. The fact you can get different control bores for this, makes it one of the most versatile barrels around.
The stainless steel backs were a main selling point for me. Stainless steel allows you to shoot through breaks easier than aluminum and it also holds a hone for much longer than aluminum can. Some people don't like the weight, but I have found that it helps to move the balance a little farther forward, making my cocker more stable.
As some people have mentioned before, the porting can be a real pain to clean with out water. I've found that the best way to clean the porting out is to tip the marker upside down, place your hand over the barrel and shoot a couple times. That will clean a majority of the paint out in a game or in the staging area if you don't have access to water.
The only real problem I have with this barrel, is that I've not found backs larger than .690". This makes shooting some of the cheaper paints difficult since they generally want something .692" or a little bigger.
Overall, this is a very nice barrel, though at $80-$100, it can be a bit expensive for some. The quality is top notch and I would easily recommend this barrel to anyone looking for high performance.
The SS backs do indeed make it easier to shoot through breaks. I have a .988 aluminum back and a .986 SS back. I've broken balls in both and the SS back "cleaned" itself after a few shots. It's a little heavier but still nice. You can pick them up cheap now days too.