[Red Badger]

I have heard, but not actually tried, that a lawnmower muffler can be suitably modified to make a somewhat adequate sound suppressor. Does anybody know if this is true or just BS? I know you have to drill out the center and do some tack welding..........

[tatown]

For smaller calibers, I’ve heard that an empty 2 liter soda bottle can suppress sound as well. Never tried it...

[Trailerpark Badass]

There are all manner of improvised silencer designs, whihc work with varying effectiveness.

Given that each silencer made in the US, unless one is a licensed manufacturer, must be registered and have a $200 tax paid, it's worth it to do it right.

But even simple threaded tubes with drilled freeze plugs or stacks of fender washers and spacers can work fairly well.

[ctdonath2]

Don’t forget to submit the paperwork and pay the $200 tax FIRST.
At which point you figure it’s better to make a real firearm suppressor rather than hacking up some makeshift POS.