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ATF Regulations Updated - New 2021R-05F Rule Released

Posted by Modulus Arms on 25th Apr 2022

ATF Regulations Updated - New 2021R-05F Rule Released

Legal Disclaimer: Please understand that we are not lawyers and the information in this blog article is not presented as legal advice nor should it be construed as such. The content of this article is strictly meant to inform and entertain. If you need legal advice please consult an attorney. Laws change constantly and we make no promises that the information below is or will remain accurate. To protect your freedom, you must do your own research.


In this article you will find a short summary of the DOJ and ATF’s Summary of Final Rule 2021R-05F with the proposed changes to 80 percent lower laws in 2022. We highly recommend you read it for yourself to get the full effect of what is happening right now in our country.

Have 80 Percent Lowers Been Banned?

If you listen to the news and hear those with little to no knowledge about firearms or the world surrounding them, you’ve likely heard the fearmongering and excited commentary of a country wide federal ban. This, in reality, is not the case.

What the proposal states and what will go into effect, if left unchecked, on August 24th, 2022, is the governmental demand for manufacturers to serialize 80 percent lowers and pistol frames (essentially non-firearms as if they were firearms) prior to selling them. This means that they will be treated as firearms and no longer shipped to your door but to an FFL dealer for you to fill out the paperwork prior to picking up.

A ruling such as this would essentially make an 80 percent lower a firearm and take the steam right out of the engine.

What You Should Know About 80 Percent Lower Receivers in 2022

As with previous years, 2022 has been no different for 80 percent lower receivers when it comes to the government’s “witch hunt” for the ever elusive “ghost gun”. Which we all know in its proper and legal term as an 80 percent lower (semantics). The issues being brought to the forefront is the fact that 80 percent lower receivers are not, as of this moment, federally required to be serialized and in turn can be legally self-manufactured by the end user into a lawfully possessed functioning firearm.

The argument might make sense in a country without any sort of protection for civilian firearm ownership. But here in the United States, we have protections that limit the governments’ ability to dictate certain major aspects of our freedom loving lives. Now understand, we ARE NOT saying you should ever knowingly and willfully ignore and violate established laws. We are working with our legal team as hard as possible to combat this unprecedented ruling that bypasses the proper and legal way of establishing laws in our country.

In case you are unfamiliar with governmental documentation layouts and verbiage, here’s a little forewarning. The entirety of 2021R-05F will be full of repetitive phrases and definitions, often spelled out differently. It all might mean the same thing, but if they don’t lay it out in a hundred different ways they’ll likely miss out on a way to forgo more of your freedoms.

What to be Aware of in the Coming Months

On Monday, April 11th, 2022, a press conference was held at the White House with the Department of Justice (DoJ) and the Bureau of Alcohol, Tobacco, Firearms and Explosives (BATFE) otherwise known as the ATF, to push forward on their proposed rule from 2021 to redefine parts of firearms as to majorly limit or ban 80 percent lowers.

If you would like to see the verbiage by the ATF, the entire Summary of Final Rule 2021R-05F can be viewed on their website. We’re expecting the “final published version” to be on the Federal Register website on April 26, 2022.

Additional Changes Being Made

When the ATF grabs, they grab with both hands and 80 percent lowers are not the only items they are reaching for. In their own words according to 2021R-05F Brief Summary, “The DOJ is amending the ATF regulations to remove and replace existing regulatory/legal definitions of what a ‘firearm frame or receiver’ and ‘frame or receiver’ is because the current regulations fail to capture the full meaning of those terms.”

Other words or phrases on the chopping block are, or rather, “amendments” being made include:

  • Complete weapon
  • Firearm
  • Gunsmith
  • Multi-piece frame or receiver
  • Privately Made Firearm
  • Complete muffler or silencer device
  • What parts are considered as “readily convertible”

What Can You Do?

If you are on our site reading this right now, a good bet is you are looking for a way to help or at the very least you would like to if you knew how. It is our customers and our love for the democratic values and process our country built from scratch that give us the drive to fight. We share your spirit and know how you feel because we are you, we’ll share some ways for you to join us in the fight to preserve our country’s values and the freedoms that make us uniquely incredible.

If you’d like to donate to organizations directly in DC at this very moment, here are some that we are big proponents of:

Firearms Policy Coalition

Second Amendment Foundation

Gun Owners of America

If donations are not in your budget or your preference, you can always write your state’s elected officials. Remember, they work for you not the other way around. Make your voice heard or the only voice you’ll hear is their own opinions as we have seen repeatedly in our current administration and many years throughout congress.

Are 80 Percent Lowers Still Being Sold?

Absolutely. Modulus Arms is an American company that loves the same freedoms as our customers. We will fight for those freedoms and plan on continuing to sell our products for as long as we possibly can. We welcome you to browse our extensive online catalog; select whatever fits your needs and desires.

We have 80 percent lowers for AR-15’s, AR-10’s and every tool kit needed to get you going on your own builds immediately. Just remember, if it's in the news it’s on everybody’s mind so get on there quick and be patient if it's sold out. We’ll get it back and shipping/lead times may be slightly extended due to our free media advertisements brought to you by the Biden Administration.