I absolutely LOVE this gun. It is an absolutely solid piece of machinery for an unbeatable price. As I play long-range field games, the whole cqb-ready thing just wasn't cricket for me. But with a spring and cylinder upgrade, and an extended inner and outer barrel, this gun can take on my even my fellow players DMR builds. Do yourself a favor and get this machine. After all, the only difference between this and a KM4 is the extended port in the cylinder.
Full metal upper reciever
new K120 mag
plenty of battery space in hanguard
solid feel, no rattle or shake
2GX gearbox and standard KWA internals
None except for the lack of rails.
Rating: [5 of 5 Stars!]