How To Make An Oil Filter Suppressor

SILENCER SATURDAY #173: The LEGAL Oil Filter Suppressor

Adept afternoon friends and welcome dorsum to another edition of TFB's Silencer Saturday brought to you by Yankee Hill Car, manufacturers of the YHM R9 suppressor. Last week got to spend some time with the impressive CGS Hydra rimfire suppressors. This week we get our hands dirty with the manufacturing of a legal oil filter suppressor. Is it worth the NFA Grade one awarding time and $200 to brand one for yourself? Let'southward take a wait.

I picked up the new S&W K&P xv-22 retail from GrabAGun.com.

The new Gemtech Integra fifteen-22 integrally suppressed rimfire upper is merely in for review from Smith & Wesson.

SILENCER SATURDAY #173: The LEGAL Oil Filter Suppressor

Form i, EForms and more @ TFB:

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TFB TUTORIAL: Using The ATF Eforms NFA Application System
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Making The Oil Filter Suppressor – The Fine Print

SILENCER SATURDAY #173: The LEGAL Oil Filter Suppressor

Listen, I wish nosotros were all legally able to build silencers, short butt riffles and auto guns without lengthy registration forms, $200 taxes and the threat of criminal prosecution. The unfortunate reality is that, unless we are thrown into a Mad Max or The Route type mail service-apocalyptic situation, violating the laws and regulations of the National Firearms Human action can land yous in serious trouble. Before you take steps to make any NFA item, do your research.

As a reminder, there is a departure between a licensed manufacturer and a Form 1 maker of NFA items. Manufacturers can make repairs and replace parts without the potential for creating a taxable event. Form 1 makers on the other hand, can exist required to submit another awarding and pay another tax for the ability to supercede a part on an already registered silencer.

Near importantly, condom is e'er the primary concern. Using equipment outside of its intended purposes can upshot in injury or decease. An oil filter on a rimfire burglarize might exist ok, but on the end of your .45-70 Henry information technology can speedily turn into flight pieces of sharp metal.

I urge all of you to know and empathize the laws and hazards earlier you decide to make a regulated item like a suppressor.

SILENCER Saturday #173: The LEGAL Oil Filter Suppressor

SILENCER SATURDAY #173: The LEGAL Oil Filter Suppressor

Highlighted in movies and video games, the oil filter suppressor has the mystique of covert ops or improvised weapons warfare. My main questions have always been:

How do oil filter suppressors sound?
How long do they terminal?
Are oil filter suppressors worth the steps required for an NFA Course one approving?
If you are in a legitimate, improvised weapons situation, is an oil filter suppressor a viable option?

In an endeavour to avoid additional legal concerns, I am not going to point y'all towards places that sell parts that could be used to brand an oil filter suppressor. In the days of east-commerce, everything is just a few clicks away. I decided to utilize a directly thread style mount and a longer, heavy duty oil filter for the tube and baffle section. Obviously, the options are countless.

Whether yous are a manufacturer or a Form 1 maker, proper NFA engraving is required.

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SILENCER SATURDAY #173: The LEGAL Oil Filter Suppressor

SILENCER Sat #173: The LEGAL Oil Filter Suppressor

In automotive or machinery applications, oil filters are subjected to constant mid/loftier pressure as oil circulates through paper or other media to remove debris and impurities. Typically, oil is forced into ane chamber of the filter, passing through the media and exiting back into the system through another bedroom.

Oil filter suppressor

Credit: maxx-studio/Shutterstock license

The system is a fleck dissimilar from the baffles inside a suppressor. Using this blazon of filter as a silencer, the large internal volume is the driving force backside the dissonance reduction. Which means that to be effective, oil filter suppressors will commonly demand to be big and long. That's what she said.

SILENCER SATURDAY #173: The LEGAL Oil Filter Suppressor

SILENCER Saturday #173: The LEGAL Oil Filter Suppressor

If you've ever inverse your own oil, y'all'll notice that the lesser of the filter has one large threaded hole surrounded by a series of smaller holes. Without closing off those smaller holes, trapped gas tin can stop up blowing dorsum towards the shooter. My mount/adapter squeezes upwards against the rubber gasket, sealing everything up.

SILENCER SATURDAY #173: The LEGAL Oil Filter Suppressor

Drilling a muzzle end isn't a necessity – using a subsonic rimfire round I punched a pigsty in the end of the filter. Circumspection, using a larger caliber or loftier velocity round to make the initial diameter exit hole may crusade an over pressure result, causing a rupture or explosion.

SILENCER SATURDAY #173: The LEGAL Oil Filter Suppressor

SILENCER Sabbatum #173: The LEGAL Oil Filter Suppressor

Afterwards the .22 caliber pigsty, I opened it upward further using a single 9mm round.

SILENCER SATURDAY #173: The LEGAL Oil Filter Suppressor

Somewhen, the oil filter is going to wear out. Equally a Form 1 maker, y'all are not legally allowed to supercede the filter on your own. This needs to be completed by a licensed manufacturer. Stupid, I know, but that'southward the law.

Sound Performance:

I have to say, the CCI Placidity Semiauto .22LR sounded fantastic in the S&Due west Thou&P 15-22 pistol. Action and bullet impact noises were all that I heard. Of course, it was a monster on the end of the tiny .22 AR-fifteen pistol.

Functioning dropped off on the H&K MP5K-PDW, only it was what I would telephone call "hearing safe" for short periods of fourth dimension (a not-scientific opinion). Fifty-fifty when switched to fully automatic fire, the 9mm subgun sounded pretty good – like a large flag flapping in a heavy wind.

As for how long they last, later on a few hundred rounds I'll be cutting this one open so nosotros can all have a await.

Bottom line, in a post-apocalyptic earth where laws are non-existent and stealth could mean the difference between life or expiry, an oil filter suppressor is a more than suitable option for an improvised weapon. In a mod society bogged downwardly by rules, regulations and taxes, my proffer is to save your money and buy a commercial suppressor.

SILENCER SATURDAY #173: The LEGAL Oil Filter Suppressor