About the only thing remotely similar to this is a Flatline, and I've test shot my friend's on his 98 Custom, that's about it really. O.O
12" All American, Apex
Tippmann Expansion Chamber
(Yeah not much, but it works!)
Hmmm.... sadly the area I live in isn't really all that into Paintball. So the only stuff is basically Wal-Mart paint, like Big Ball, Impact, Super Swirl. They all work O.K. I guess, about anything would work in it I assume.
I got this barrel a couple of years ago off Ebay because I wanted that special advantage of distance on my side. The barrel comes equipped with a variety of settings that give a certain distance to your shots with a tiny lever on top of the big plastic cylinder at the end of the barrel, and depending on if you rotated the cylinder your shots also can gain a certain curve or arc. I've read some reviews where people have said that this is a cheat barrel and all that fancy stuff, and I just want to say don't listen to that kind of stuff. If the curve features bother you then just don't use them. Personally I have never and will never use the curve features in an actual game. When I'm just screwing around I have tested them and I think they are exagerrated a tiny bit as advertised.
A couple of positives that I noticed about this barrel are that it is pretty much a flatline, and at the time when I bought my apex, the apex was a good $10-$15 cheaper than an A-5 flatline. The standard barrel is I believe 10 1/2" (correct me if I'm wrong) which is an decent lenght I guess. The distance is a pretty good thing to be able to use during a game, it is excellent at supressive fire. Everytime you move the lever up a notch the more distance you get, at it's highest setting you get an almost unreal distance, you'll have to adjust your aim alittle because when you fire it, the paintball actually dips a little to the ground. You also have the option of turning off the flatline effect and using a normal barrel which isn't the most accurate but it would get the job done. I've also read reviews where people claim the cylinder on the end of the barrel got broke off. From my experiences the Apex is pretty strong actually. Last year I was doing a couple of 2 on 2 games at my house and in the middle of one of the games I tripped on a tire and did a face plant . The Apex got slammed into ground, and to my surpise the barrel only got a few scratches down the side. (Good times... ^.^)
Nothing is perfect and I feel obligated to tell you guys some of the bad things that I have came across. Distance is a good thing to have, but with this distance you sacrifice some of your accuracy and the odds of getting the person you may be shooting at out. The further the ball flies the more speed you lose, the slower the paintball goes and if you hit someone it might just not break. Surprisingly though, the Apex is pretty accurate, just not quite as good as a normal barrel, but nothing major. If you get a break in the barrel it can be a real pain to clean out, but I really haven't had too many breaks, just use decent paint and you'll be fine. The Apex is also quite loud, when combined with my A-5 people literally thing I am using a cannon, but people also get intimidated of how loud it is, which can also be a positive.
Overall this is an O.K. barrel. It is excellent for pinning down anyone, but it doesn't quite have the accuracy to be much of a "sniper" mod. It all really depends on your style of play, I play a more stealthy style but I was able to fit the Apex into that category. I am satisfied with this barrel, it is an extremely useful tool to have in my hands.