This subject used to be covered under our “Oil Filter Suppressor” page, but we’ve decided to give it the space it deserves. In addition, we’ve given the “Maglite Suppressor” it’s own page as well. You may also want to read about the new IMACS – Integrated Muzzle Adapter Coupling System
You may also want to read our page, Books on How to Make a Silencer.
Buy a Wix Fuel Filter here:
As we discuss repeatedly, whether making a suppressor from an oil filter, a fuel filter, a flashlight, or anything else, what you really need are two things; 1) A can or tube-like expansion chamber – preferably with some media/baffles in there to absorb the expanding gasses, and 2) a threaded adapter to connect that can or tube-like expansion chamber to your barrel. The tricky part is always making certain you are matching the right threads for both your barrel and the can you have chosen. That is where most of us lack the tools and ability – to build our own adapter. Once you have the right threaded adapter, the rest is probably within the grasp of the average man’s tools and abilities. We recommend you spend a few minutes researching the threading and materials and looking up some reviews on Amazon.com or elsewhere prior to spending money. Also, viewing videos on YouTube can be helpful as well.
Well, the Maglite is but one option when you’re looking for a solvent trap or a do-it-yourself suppressor design. There is a particular model of fuel filter that may be even better than the Maglite at both acting as a solvent trap as functioning as a suppressor. The Wix Fuel Filter seems to be built almost with functionality as a firearm suppressor in mind. When you look at this item, both on the outside and at the guts, it looks like it’s begging to be used as a suppressor. I mean, look at this thing! It is flat black and sleek looking, lightweight and comes with a replaceable filter media on the inside.
The biggest trick for this one is the threaded adapter, which is not as straight forward as the oil filter suppressor or the Maglite suppressor. The adapter needs to be 3/4 NPT. These threads are tapered in a slight cone-shape. Using the wrong adapter here could be anywhere from annoyingly misfitting to disastrous, depending on what use it is put to.
As one Amazon reviewer of a threaded adapter says,
Be careful when Amazon says “frequently bought with…”
This will not work well with a WIX filter.
This is 3/4 x 16
The WIX is 3/4 NPT
They are different threads.
We have identified one supplier that sells these 1/2-28 to 3/4 NPT adapters, and he is sold out.
So once you have your threaded adapter, thus enabling the coupling of your barrel to the Wix Fuel Filter for use as a solvent trap, you’re well on your way. From there, should you decide to attempt to convert it into a suppressor, it’s a do-it-yourself project and you take all the risks and you are responsible for your own success/injury/jailtime. Again, we recommend you use the Fuel Filter as a solvent trap only, unless you have met all the ATF’s requirements for manufacturing a suppressor. Even when using it legally as a solvent trap, you may want to take precautions not to give the appearance of having a the intent to use it as a suppressor. There is a video that explains how below
We’ve found a few videos on YouTube that may also help with your understanding of how these products can help you recycle your cleaning solvents. Hat tip to Dustin of gunthreadadapters.com for the very informative videos.
Make SURE you get the correct adapter. The Wix Filter needs a 3/4 NPT thread.
There are many vendors selling adapters that they claim will fit the Wix Fuel Filter, but are not the correct thread type so – Caveat Emptor!
We recommend you learn what you can from watching others on YouTube before you go off and try this on your own. Just pay attention to the law of the land (The ATF/NFA) and the laws of physics. Running afoul of either of them could give you a really bad day.
Disclaimer – Second Amendment Check, LLC does not recommend breaking the law, and will not be held liable for any injury, damages, or legal trouble individuals may find themselves in.