||I just ordered this gun last week and it is definitely worth the money. First of all, for only $120, it competes with AEGs that cost about 250 dollars. It has a very strong, durable ABS plastic body, and everything else is metal and it's very lightweight. This M4 has very decent FPS (I chronoed it at 310 with .25's) and it is extremely accurate. The gun is very easy to disassemble and the gearbox is just as easy.
I've only had two problem with this gun so far, and one was that it wasn't feeding because since it was wired to the front, the wires would get lodged in the magwell. But a very simple fix, all you have to do is take the M4 apart and put the wires on opposite sides of the gearbox. The second was with the body pin closest to the stock. Whenever I would try to loosen it with a allen wrench, the whole pin would turn. But some pliers easily fixed the problem.
Easy to disassemble
Extremely worth the $120
Mag feeding problem
Overall, I'd rate this 8 out of 10. Amazing gun, and it's more worth the other model for $240 that just comes with a metal body and functional bolt catch.
Rating: [4 of 5 Stars!]