No performance upgrades other than the stock barrel (it's a little overbored)
-CO2 / air
-air through grip
-mech / electric
Well i got this marker two weeks ago and have been waiting untill i really got to play before writing a review. I shot a good bit to test it out when i got it. I played yesterday, and it worked perfect all day. Keep in mind that it was warm and dry though, so good performance is to be expected. so far i've put about 1500 balls through it.
-CO2 compatible. This is a key strength for anyone who doesn't always play at a feild. i use air, but i don't always want to drive 30 mins to get it when i'm playing in the woods. the option to use CO2 available at most sporting goods stores is nice.
-Air through grip. this makes the gun look better, and feel better. I really didn't think this would matter, but i did notice that it wasn't there. (i've used an A5 for the last two and a half years)
-No batterys. This is really nice to have. I brought this marker home and spend a few minutes setting it up and getting ready to test it out. then i remembed that i didn't have a battery. i still was able to test it though, but only in semi. Also when you do put batterys in, it works a little different from the other x7 grips. The board is off untill you flip the switch up, then the electronics kick on and you are ready to roll. they stay off while in semi (mechanical). This saves battery and you don't need a poker to turn on your board.
-Cyclone. Alot of people hate cyclone feeds, and i've heard about alot of problems with them breaking. what i've found is that if you are good to your cyclone, it will be good to you. Keep it clean and use grease one the ratchet and oil on the piston. i have never had my cyclone break on me and i've put alot of paint through my A5. The only limitation the cyclone has is that it is bad with high rates of fire. The Phenom cyclone is superior though. I really didn't think that it would keep up with the 15bps. But it did. My friend and I had a full auto shootout in which i put an entire hopper through on full auto with reasonably long bursts. Not a single shot was missed by the clyclone. Another plus is that no batterys are needed to operate the loader.
-Feel. This gun feels good to hold and shoot. Something i was worried about before I got this marker was the quality. But it feels solid. No wobbling on the grip, the push pins are snug, no rattling when you shake it. Even the air line to the cyclone has a little coil around it for protection. Tippmann still makes durable sturdy guns. Shooting is nicer than other tippmanns. Very little recoil and a snappier feel. The trigger is smother and the pull is shorter and lighter. Also the trigger doesn't wobble all over the place like the A5
-Heavy. Yes this gun is heavy. i was slightly dissapointed, but then again, i do run remote so it's not really a problem. It's heavier than my stock A5, and the PPS brass does not help that at all, but its worth it for the accuracy. i'm not sure how the weight compares to the standard x7. Consider a remote line if you do not already use one.
-Board. The three shot safety feature is anoying. on all of the electronic modes, two rapid pulls are required before the mode kicks in on the third pull. I figured that the selector switch would eliminate the need for this.
Over all, the phenom is a great gun. i love the fact that an entire day can be played without batteries, on CO2, just like the old days. of course it's not the best choice for airball, but for general play i highly recomend this marker.