||This is one of the best guns I have ever owned. Stock the FPS was good, around 315 ,put an M120 or M130 spring(can't remember which) and it shot fine at about 410-420 fps, didn't need any upgrades. Set it up for LiPo, needs upgrades. The pinion gear on the motor was totally stripped so if you're looking to set it up for LiPo batteries, upgrade all the gears and motor. This gun has great construction although for the rail on the bottom and the screws to remove the stock you do need a metric allen wrench set. The metal used on the upper reciever is flawless, the plastic used for the lower reciever and stock are some of the most durable i've seen. The only two "problems" I can find with this gun and both are on the stock. One is the stock doesn't come out very far and the other is the battery is very hard to put in/remove. You can fix this though with the removal of a screw.
Sturdy rails and stock
Good stock FPS
Stock doesn't come out far enough
Battery is a pain to put in/remove if you don't remove some little screw.
Over all I give this a 5 out of 5
Rating: [5 of 5 Stars!]