SSR4 Complete Gearbox Assembly

To ensure optimal airflow, we opted for CNC parts. The piston is equipped with ported CNC machined aluminium head.

The cylinder head is also made of CNC aluminum with a beefy rubber dampening pad with a custom design that makes the system quieter, gives a longer lifetime to the gearbox shell, and correct angle of engagement (AoE). The cuts in the rubber pad give it optimal airflow.

To support the high fire rate the ETU is built to withstand, we added fast and durable 16:1 Gears. This ensures smooth and fast action all the way. Also the ETU that is included in this Gearbox assembly allows for all the features like Burst fire, Binarry trigger or Precocking. So that you'll have the upper hand!

We needed the SSR4 to be, above all, reliable. To make it happen, we used a few tricks. First and foremost, the SSR4 is fitted with 8 mm bushings. Compared to bearings, they are sturdier and more reliable. Moreover, they offer supreme durability and low friction.

On top of that, we used steel for parts that tend to undergo a good deal of stress and wear. For that reason, you get a steel cylinder, and steel teeth on the piston.