What Makes a Receiver into a Gun?

by
posted on November 27, 2022
** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. **
ATF Headquarters
Photo: Dicklyon

The ATF's headquarters in Washington, D.C.

The Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) sent a letter to gun dealers (Federal Firearm License holders) in late September further “explaining” the Biden administration’s arguably unconstitutional new rule on gun frames and receivers.

The ATF wrote a long-winded opening statement to “further assist the firearms industry and the public in understanding whether a ‘partially complete, disassembled, or nonfunctional’ receiver of an AR-15/M-16 variant weapon has reached a stage of manufacture such that it ‘may readily be completed, assembled, restored, or otherwise converted’ to a functional receiver, and is therefore classified as a ‘frame or receiver’ or ‘firearm’ in accordance with the final rule titled ‘Definition of ‘Frame or Receiver’ and Identification of Firearms’ (Final Rule 2021R-05F), which became effective August 24, 2022.”

Much of the letter, which seems to be a classic case of making up the rules as you go, revolves around what many refer to as "80% receivers." According to the letter, however, ATF doesn’t use that term nor recognize any significance in it. The ATF’s analysis, per the new rule, revolves around the word “readily,” which the agency says, “examines how efficiently, quickly and easily a clearly identifiable component part of a weapon can be completed, assembled, restored or otherwise converted to house or provide a structure for the applicable fire control component.”

“Thus, in order not to be considered ‘readily’ completed to function, ATF has determined that a partially complete AR-type receiver must have no indexing or machining of any kind performed in the area of the trigger/hammer (fire control) cavity,” the letter states. “A partially complete AR-type receiver with no indexing or machining of any kind performed in the area of the fire control cavity is not classified as a ‘receiver,’ or ‘firearm,’ if not sold, distributed or marketed with any associated templates, jigs, molds, equipment, tools, instructions or guides, such as within a receiver parts kit.”

Further, the ATF letter explained that to not be considered a “firearm,” the trigger/hammer area of the lower receiver must be solid. If a trigger slot has been created in the receiver, it is considered a “firearm,” regardless of whether it meets the other criteria to not be a “firearm.”

The letter further stated that even a receiver meeting the criteria as not being a “firearm” can be reevaluated if the person making it sells other “items” that can be used to “readily” make it into a “firearm.”

Lastly, the ATF warned against trying to skirt the rule as explained, writing in a passage underlined for emphasis: “It is important that persons engaged in the business of manufacturing, importing, or dealing in these items do not take any steps to avoid licensing, serialization, recordkeeping, and other requirements and prohibitions of the law by selling or shipping the parts or parts kits in more than one box or shipment to the same person, or by conspiring with others to do so.”

In the end, the Biden administration pushed the ATF into skirting Congress and making a confusing, arguably unconstitutional new rule. It’s likely that the ATF’s recent letter, signed by Acting Assistant Director of Enforcement Programs and Services Andrew Graham and Acting Assistant Director of Field Operations William Henderson, will leave more people confused than it did answer important questions. 

Still, those interested in selling and purchasing partial receivers would be wise to read the ATF letter carefully to keep from running afoul of the new rule, however misguided it might be.

Latest

House Committee on Ways and Means Chairman Rep. Jason Smith
House Committee on Ways and Means Chairman Rep. Jason Smith

The Greatest Second Amendment Victory in a Century

On July 4, 2025, Americans celebrated not only our nation’s independence, but also the restoration of our constitutional Second Amendment rights becoming unconstrained by burdensome and arbitrary fees.

Opening Salvo | More Evidence That Gun-Control Groups are Freaking Out

With the Trump administration’s law-and-order push showing America’s crime problem is clearly not the fault of lawfully armed citizens, gun-control groups are freaking out.

John Rich has a Song for Armed Citizens

John Rich's latest song is "The Righteous Hunter." It is a moving tune about standing up to stop those with evil intentions. It is a song for lawfully armed citizens.

This Department of Education Grant Could Change Things

The University of Wyoming’s Firearms Research Center has been awarded a nearly $1 million grant by the U.S. Department of Education to develop a nationwide program on the origins, meaning and implications of the Second Amendment.

From the Editor | Charlie Kirk Lived for Freedom

“Give me liberty, or give me death,” are the immortal words of Patrick Henry spoken on March 23, 1775, to the Second Virginia Convention in Richmond, Va. His impassioned words were a call to arms against British tyranny.  

Ninth Circuit to Revisit Background Checks on Ammo Case

The Ninth Circuit Court of Appeals has granted rehearing en banc in Rhode v. Bonta—a case backed by the National Rifle Association and California Rifle and Pistol Association. 

Interests



Get the best of America's 1st Freedom delivered to your inbox.