There is a version for CF tube, and also a polygon fiberglass wrap version

The polygon version also comes with a version that has a slot for a wipe

There is a file for a TPU wipe

Description: This is a printed rimfire, by popular request. It utilizes the FTN.3 Slanted K baffles that resist deformation.

You may be wondering, why does it need fiberglass/resin or CF tube shell? Couldn't I just tape it, or do nothing at all?

The answer is, you probably could. And it would work for a short time. However when dumping a large number of rounds in a short amount of time, you may be surprised how much heat gets built up. The shell of either fiberglass or CF helps maintain rigidity for longer lifespan

There is a wipe version of the polygon, that utilizes an optional TPU wipe. The effect is about 4-5 dB of sound reduction