SHELL GEARBOX M249 CNC SPECNA ARMS (SPE-08-023737)

Extremely tough and reinforced GB shell, designed for tuning M249, PKM or M60 replicas.
Made with CNC technology from durable 7075 aluminum.
Special cutouts where the motor is mounted allow for faster cooling and increase life.
It is equipped with a quick spring change system, 8mm plain bearings, a microswitch and output wiring.

Color may vary according to production