M249 Metal Hop-Up chamber, made by the Russian Company - Combat Union made from alloy D16T and created for the AEG. It's made on the high-precision CNC machines in Russia.
This is one the most durable and stable Hop-Up chamber, ever made for the M249. It's made from durable alloy and include Nozzle, to provide best compression. It's increase your FPS on 16-25 (5-10 m/s), with the same details in gearbox.
Another great feature of this Hop-up - it have wheel for hop-up adjustment. It's tight turns, not to lose the configuration from vibration when shooting. So, that's mean, that you can be sure, that you don't need to adjust hop-up after each game.
Also this hop-up have four holes for LED, what makes it easier to install the tracer.
Compatibility: All M249 and it's modifications
Material: Alloy D16T
Made in Russia.