The Medium Reservoir

The Medium reservoir is 1.60in or 40.64mm in diameter. It was unofficially and un-inspiredly christened The Medium because at the time we were testing it, its outside dimensions fell almost exactly between our regular reservoir at 1.26in/32mm and the Bigboy reservoir that was 1.9in/48.25mm. The name stuck and the rest is history. We've noticed other makers call their similarly sized reservoirs Medium as well. At least it wasn't the first time we started a trend by accident.

Here are a couple of examples:

This is the Caiman in Light Hunter config, with a Medium reservoir and carbon fiber silencer.

This is one of the first shrouded Caiman Carbines that used the Medium reservoir.