Poor Boy's Suppressor.

[Tal]

[imschur]

I believe the original suppressors were designed similarly.

[Microgunner]

You can buy the adapter on line sold as a cleaning solvent trap adapter.

You're risking your freedom though if your caught using one.

Also, you can't see your front sight with the filter installed.

http://cadizgunworks.com/store/index.php?route=product/category&path=18_28

[bdavison]

Solvent trap.....yeah....riiiiiiiiggggggghhhhhtttttt.

That's pretty good.

[Longitude Zero]

nteresting idea.  However the consequences of getting caught with one...NOPE.

[bdavison]

In all reality, if they were individually serial numbered, then you could probably put the adapter on a tax stamp and run it legally.

That would be super funny showing up with this at a local range.