Tuesday, August 04, 2020

80 % Silencers Today

In the first part of this series, I wrote about the history of silencer criminalization, about how a simple safety device, relatively easy to make at home, was made into contraband. Contraband where mere possession can result in some of the heaviest criminal penalties in the federal sentencing guidelines.

Silencers are easier to make today, than at any previous time in history.

The process to pay the draconian tax required to make a silencer is easier today, than at any time in our history.

The potential penalties for possession of a silencer, without the payment of the tax, are draconian.  Federal guidelines call for a minimum sentence of 27 months in prison, without parole. The potential fine is $10,000. The maximum sentence, if the silencer possession coincided with possession of drugs with intent to distribute, is 30 years in prison without parole, and a $250,000 fine.

The time required to build one consists of the wait time for the Form 1 processing and a couple of days or hours to build the silencer.

 The wait time to follow the bureaucratic procedures to purchase a silencer (not to build one) has been stretching out to several months.

Time to get an approval for a Form 1, over the Internet, is reported to be about 2-3 weeks. The wait time has likely increased in the last two months as the record breaking surge in firearms sales has continued.

These facts considered together, have led to a boom (or should we say a "whisper"?) in legal homemade silencers.

As of August, 2020, there are almost certainly over two million legal silencers in the United States. There were over 1.75 million as of May of 2019, more than a year ago. From April 2017 to May, 2019, the number of legal silencers increased by 390,000.  The increase is likely higher than 200,000 a year in 2020, as shown by the record breaking firearm sales.

As shown by BATFE records, about 10 - 20 percent of the legal silencer increase is from people making their own silencers, using an ATF Form 1 to meet the regulatory requirements.

The sequence to legally make your own silencer is this:

Send in the completed form 1, fingerprint cards, and payment of the $200 tax to the BATFE.  Pay attention to details. The link shows how to do it.

Wait for approval of the Form 1, and the Tax Stamp form.

When you have been approved, make the silencer.

There is no time limit for completing the silencer build.

You do not need to send in a diagram.

The Form 1 will require the overall length of the silencer you intend to build.  It will require the caliber.  That may be the hole in the end of the silencer. The hole size does not appear to be critical, according to discussions on the Internet forums.  The Form 1 will require the proposed model number and serial number.  It will require the name and address of the proposed manufacturer. The Form 1 does not require any photographs of a silencer, but it does require a photograph of the manufacturer (passport type photo).

There are several ways to make your own silencer.

1. Machine everything from scratch. This is not difficult if you have a lathe and experience in using it.

2. Purchase a solvent trap or military pill container or fuel filter which has a number of features in their existing, legal form which are  useful in the production of a silencer.  Then, complete the machining, which consists primarily of drilling holes. Assemble the components into a legal silencer.

These items, which amount to "80% silencer kits", are available from numerous sources in and out of the United States, and can be purchased over the Internet. Some of these sell for as little as $10-$20.

3. Purchase separate components, which are mostly compatible, do little or no machining, and assemble them into a simple silencer.  One of the most common methods for this is to use flashlight tubes or PVC components.

4. Use a 3D printer to print an entire silencer as one unit, with a small amount of clean-up of the finished product. This has been done at least a few times, as a proof of principle for a .22 rimfire silencer.  Alternately, a 3D printer could print a few parts which could be assembled into a silencer.


The people experimenting with 3D printed silencers say they completed all the necessary paperwork. It is easy to do if you are a licensed manufacturer (not the same as a Form 1).

The problems with 3D printed and PVC silencers is while they may last for a few hundred rounds, they are not as durable a a metal silencer. If you are going to pay $200 to exercise your Second Amendment rights, they are a moderately expensive option.

The most popular method is what amounts to an "80% silencer kit" which uses solvent traps, fuel filters, or pill containers that already have much of the machining compatible with a silencer done, as an intrinsic part of their shape.


They are easy to finish.

They work well.

They are durable and effective.


The price can be high - as much as $500 for a top of the line solvent trap.

There is no guarantee, because you are the manufacturer.

Sellers of the solvent kits, fuel filters, and pill containers come and go. Those selling on Ebay often list a limited number of items, sell those, change their name, and sell more as a different seller, to limit their exposure.

Purchasing such items from overseas exposes the purchaser to potential charges of illegal importation of a silencer.

This seldom happens, but there have been a couple of cases. This one, in New Mexico, is in process as this article is written. From stripes.com: 

U.S. Customs and Border Protection intercepted a package addressed to Justice at the international postal station at John F. Kennedy airport in New York City. Agents opened the package because the Chinese company that sent it was known to ship silencers into the U.S. illegally.

Agents found information that Justice had placed orders with Chinese vendors of shipping firearm-related devices like the silencer in the past.

The specific silencer agents found was sold under the name of “Inline Filter” with the intent to disguise it as an automotive part.

One problem is the definition of what is a silencer. Some of the fuel filter kits, especially those with a monocore, might be considered a complete silencer, or a dedicated silencer part, because they have a hole through their center.  Enforcement of this is very spotty.

Many of the kits are sold in the United States, through Amazon or Sears or Walmart. The suppliers come and go, so a search is necessary to determine the latest terms and deals.  Kits sold in the U.S. are usually more expensive. The smaller, simpler kits are generally for .22 rimfire.

There are intermediate kits for general pistol/subsonic use.

There are more sophisticated, more expensive kits for supersonic high powered centerfire rifles.

There are hints in the advertisement for a solvent trap as to what calibers would be suitable for a suppressor made from that kit. Sometimes the solvent trap makers will be very specific.  If you study finished suppressors on the market, you will quickly be able to determine what "80% suppressor kits" are appropriate for what calibers. A suppressor which is appropriate for a .22 rimfire may well be destroyed by a .223 supersonic round.

The laws of physics apply.  Silencers capable of being effective with higher pressures and more power must be larger and heavier, on average, to be as effective.  Kits for .22 rimfire can be the smallest and still be effective.

Filling out a Form 1 before ordering a kit helps to prevent a prosecution.

I have not heard of anyone who had a completed Form 1, who had a tax stamp, who was prosecuted. If you know of such a case, we at Ammoland would love to hear of it.

Currently, the BATFE has ruled that someone who makes their own silencer cannot use replacement parts to repair it. The parts used in making the silencer may be repaired, if they are damaged, as long as they are not replaced.  This makes absolutely no sense; but almost all of the law about silencers makes no sense.

If you have heard of a case where someone made a silencer with a completed Form 1, legally, and was then prosecuted for repairing it with a replacement part, please send the information to AmmoLand.

I have yet to find a case where this occurred.

It is not hard to envision potential circumstances where a person could be prosecuted.

Someone could make a silencer legally.

Then, at the range, they could damage it, make a video of the damage, and publish the video on social media, such as Youtube, Facebook, or Twitter.

Then they could repair the silencer themselves, by, perhaps, replacing a baffle or end cap.  Then they could show the repaired silencer on social media and brag about repairing it.

A Social Justice Warrior might bring these bits of evidence to the attention of the BATFE.

It could happen. Please forward cases which are similar to this to AmmoLand.

Another potential would be for a legal maker to damage their silencer, then make/use a replacement part,  then brag or talk about it on a forum on the Internet.

There are entire Internet forums dedicated to silencers and building silencers. Many answers can be found from reading the discussions on the forums at silencertalk.com.

 There has been a persistent myth that if you legally purchase or build a silencer, the BATFE can then inspect/search your home at any time. If someone can find a statute which grants the BATFE such authority, please send it to AmmoLand.

Obtaining a Form 1 and building a silencer is legal. Building or purchasing a legal suppressor does not grant the BATFE any extra authority to inspect your residence or where you store your silencer. The BATFE  requires probable cause to obtain a warrant to search for contraband, just as they do for anyone who did not legally build a silencer.

State laws about silencers vary considerably from outright prohibition to no laws affecting silencers.  Readers should research the law of their state of residence.

Silencer law is malum prohibitum (wrong because it is prohibited by law) instead of malum in se (naturally evil, as judged by the sense of a civilized community).  It is prohibited only because progressive politicians wanted it to be prohibited, even though it makes no sense for it to be prohibited.

Silencers are easy to build. The bureaucratic hurdles have been reduced. There are several guides to help do this, on the Internet.

80% silencers are here for the foreseeable future. The next article will deal with the political ramifications of 80% silencers.

©2020 by Dean Weingarten: Permission to share is granted when this notice and link are included.

Gun Watch

1 comment:

Anonymous said...

All of those requirements are in fact unconstitutional infringements and the tax is unconstitutional. no right can be taxed. Is your right to vote taxed? is your right to speak taxed? is your right to privacy taxed? It is a federal stamp tax. Unconstitutional revenue for the unconstitutional ATF. I have a hearing loss thanks to Vietnam and cannon for for over four hours. I have the capacity and the equipment and the know how to create any kind of silencer I want. I have yet to make one. If the unconstitutional law ever changes I plan to go into production. all it takes is time and materials. Has any one ever been killed by a registration requirement? No, the killers never register any thing. Just the law abiding citizens are being taxed and harassed for exercising their right to self defense. Ever ask your self how the ATF came into being. The U. S. congress passed an act, in the face of the constitutional command The right to keep and bare arms shall not be infringed. Until that statement in the constitution is removed by a constitutional amendment ratified by the people not congress that act is unconstitutional because acts are not ratified amendments. anything added to or removed from the second amendment is an infringement if added or removed by congress. That is cut and dried. the reason the amendment process exists is to prevent government from changing the constitution by passing acts. In the second amendment the phrase shall not be infringed is an absolute command. Congress nor the states have ever had the authority to amend the constitution. There is no age or gender requirement in the second amendment. But you can be drafted and sent to a foreign land to kill our enemies at age 18. try buying a pistol at age 18. The constitution actually says any one between the ages of 16 and 45 can be called up and trained to kill. In the revolutionary war you got called up and had to bring your own weapon. Between 2 and 3 percent of Americans actually fought the revolutionary war. Most of those weapons were hand made. I was an expert marksman at age 16,rifle, pistol or shotgun and I can sign my name with am M-60. Gun owners had better wake up. I teach reloading.