This P90 is miles ahead of every other P90. The Sportline was not exactly the most reliable and well performing gun. This P90 is EXTREMELY well made. Solid metal upper receiver, and a very sturdy polyurethane lower receiver. There was a little bit of wobble on the front end from the upper receiver not being tightened down all the way, but this was easily remedied.
With an 8.4v the ROF is excellent, with a 9.6v, it's ridiculous. There is little need for a Lithium battery in this. The battery compartment is a little cramped, but I highly recommend investing in the P90 Custom Intellect battery as they fit perfectly.
The fps is actually a little high for a CQB weapon, and if you are wanting to use it for that purpose, you may want to replace the spring to bring the fps down a little.
The sight is fantastic. The low setting is the perfect brightness for dark or dimly light. The high setting is a little too bright in my opinion, but it's not unbearable.
The only real downfall of the gun involves the magazines. DO NOT BUY KS MAGS! One try with a KS Mag, and the mag was done. It didn't feed properly, and just dismantled itself when it was pulled from the gun. The CA Mag that comes with it on the other hand is very good. Solid fit, feeds great, and operates as it should.
Overall, there is no reason to buy the Sportline, Echo1, or even the TM P90, as this rendition it far beyond anything else on the market. If you are considering a P90, then look no further than this ProLine P90. You won't be disappointed.
Very solid internal arrangement (Gearbox, Metal Hopup, etc.)
High ROF, even with an 8.4v battery
Very sturdy body, both upper and lower
Excellent weight and feel
Dot sight is almost perfect
CA Mags work and fit perfectly
Cramped battery compartment (recommend P90 custom battery for fix)
Magazines seem to be an issue, I recommend spending the extra money for a high quality mag
FPS is a little high for CQB facilities, but a change of the spring should fix that.