Measuring Your Firearm: Does A Suppressor Count As Barrel Length (2024)

There’s a lot of talk and debate about barrel length in the gun community. Some people prefer longer barrels for the increased ballistic performance and accuracy while others are partial to shorter barrels for their maneuverability and concealability of them.

In most cases, barrel length is nothing more than personal preference. However, there are instances where barrel length is very important. Like, the difference between felony firearms charges or not, it’s kind of important.

This is something that you have to consider when dealing with NFA firearms such as a short barrel shotgun (SBS) or a short barrel rifle (SBR), where barrel length is absolutely critical to staying within the confines of the law and on the outside of a prison cell.

All this talk of felony charges and prison cells may seem doom and gloom, but it doesn’t have to be so long as you have done your barrel length and/or overall length measurements correctly.

So, to answer the question of whether a suppressor counts as barrel length, the short answer is yes with an if, or no with a but.

Don’t worry we’ll clear all of that up in this piece.

Measuring Your Firearm’s Overall Length

When you’re dealing with potential legal issues, it’s very important that you get your measurements right. Not only does this mean ensuring that you read your tape measure correctly, but also that you’re taking the measurements correctly in the first place.

The ATF has its own procedure for measuring barrel length, and contrary to some people’s beliefs, the government doesn’t like putting good people behind bars, so the ATF has made its measuring procedure publically available so that you can duplicate it at home. To do it their way, you measure from the closed bolt (or breech-face) to the furthermost end of the barrel or permanently attached muzzle device.

Barrels are measured by inserting a dowel rod into the barrel until the rod stops against the bolt or breech-face. The rod is then marked at the furthermost end of the barrel or permanently attached muzzle device, withdrawn from the barrel, and measured.

When Does A Suppressor Count As Barrel Length

In the vast majority of situations, muzzle devices (flash hiders, muzzle brakes, suppressors, etc) are not permanent. They’re threaded onto the end of the barrel and can be removed if you so choose.

You may be asking, “But what about Loctite or Rocksett?” Yes, those make it hard to remove the muzzle devices, but they aren’t considered permanent.

Just as the agency has its own method for measuring, the ATF also has its own definition of the word “permanent,” and again, they make it publically available. The definition is laid out in chapter two of the ATF’s National Firearms Act Handbook:

Permanent methods of attachment include full-fusion gas or electric steel-seam welding, high-temperature (1100°F) silver soldering, or blind pinning with the pin head welded over.

Under this definition, Loctite, Rocksett, or any other such adhesive methods do not count as a permanent attachment. That definition is also why the phrase “pinned and welded” is heard a lot when dealing with rifles that have barrel lengths that are under 16″ but are not classified as SBRs.

The only way a suppressor would count for overall barrel length would be if you permanently attach it to a given firearm in one of the ways mentioned in the definition above.

There’s nothing saying that you can’t permanently attach your suppressor to one of your firearms, but then you give up one of the biggest benefits of a suppressor: the ability to use it on a variety of different firearms so long as they are caliber-compatible.

THE 6 BEST AR SUPPRESSORS ON THE MARKET

Why You Need to Measure Your Weapon

As we mentioned at the very beginning, measuring your weapon properly is very important to ensure that you are not unintentionally entering NFA territory. Failure to measure correctly means that you could end up creating an SBS or SBR, both of which are only legal if they are registered as NFA items.

While we mentioned that the government doesn’t like putting good people behind bars, the fact of the matter is that ignorance of the law is no excuse. The information about NFA items is readily available and compliance is easy. We’re not saying you’ve got to like it. We’re just saying that we know you’re a law-abiding gun owner and we know that you aren’t trying to purposefully run afoul of the NFA and the ATF.

Get A Suppressor Today!

All of this might still sound a little confusing, but it shouldn’t deter you from getting a suppressor. The fact of the matter is that it’s never been easier or faster to get a suppressor than it is right now.

When you’re ready to take that next step, give Silencer Central a call. We’ve been selling suppressors all day every day for more than 15 years. In that time, we’ve become the nation’s largest silencer dealer and are licensed to sell to people in all 42 states where suppressors are legal.

Let us handle all of the paperwork, break up your payments with our interest-free eZ-Pay plan, and then mail your suppressor right to your door upon approval! We said it’s never been easier or faster to get a suppressor and we mean it.

Give us a call and get a suppressor today!

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Barrel length in firearms is a multifaceted subject that delves into both performance and legal compliance. The discussion revolves around the impact of barrel length on accuracy, ballistics, maneuverability, and the legal implications tied to specific measurements, particularly in relation to NFA (National Firearms Act) regulations.

In the firearms world, barrel length is a hot topic. Longer barrels often enhance ballistic performance and accuracy due to increased muzzle velocity and longer sight radii. On the flip side, shorter barrels offer better maneuverability and are easier to conceal. In most cases, barrel length boils down to personal preference, but it becomes legally critical in certain instances, especially concerning NFA firearms like short barrel shotguns (SBS) or short barrel rifles (SBR).

The legality aspect cannot be overstated. For instance, possessing a firearm with a barrel length below the legal limit could result in felony charges. Understanding the correct method to measure barrel length, following ATF guidelines, is crucial to avoid legal repercussions. The ATF measures from the closed bolt or breech-face to the furthermost end of the barrel or permanently attached muzzle device.

One of the contentious debates relates to whether a suppressor counts as barrel length. The short answer is yes, under specific conditions of permanent attachment. The ATF defines permanent attachment as techniques like full-fusion gas or electric steel-seam welding, high-temperature silver soldering, or blind pinning with welded pin heads. Adhesive methods like Loctite or Rocksett do not qualify as permanent attachment under this definition.

However, attaching a suppressor permanently sacrifices its versatility across different firearms. This limitation contrasts with the inherent benefit of suppressors—the ability to be used across multiple caliber-compatible firearms.

The importance of accurate measurement cannot be overstressed. Failure to measure correctly might inadvertently lead to creating an SBS or SBR, both of which are only legal if registered as NFA items. Ignorance of these laws does not serve as an excuse, emphasizing the necessity for firearm owners to be informed and compliant.

Despite the complexities, acquiring a suppressor has become more accessible. Dealers like Silencer Central streamline the process, handling paperwork and offering payment plans, making the purchase easier and faster while ensuring compliance with legal regulations in states where suppressors are legal.

If you're considering purchasing a suppressor, engaging with knowledgeable dealers like Silencer Central can simplify the process, ensuring compliance with regulations and facilitating a smoother acquisition.

Concepts covered in the article encompass:

  1. Barrel Length Preferences: Discussing the trade-offs between long and short barrels in firearms.
  2. Legal Implications: Highlighting the significance of barrel length in relation to NFA regulations and potential felony charges.
  3. ATF Measurement Procedures: Explaining the correct method for measuring barrel length according to ATF guidelines.
  4. Suppressors and Barrel Length: Clarifying the conditions under which suppressors count towards barrel length and the implications of permanent attachment.
  5. NFA Compliance: Stressing the importance of accurate measurements to avoid unintentional violations of NFA regulations.
  6. Suppressor Purchase: Simplifying the suppressor purchase process through knowledgeable dealers who assist with paperwork and compliance.
Measuring Your Firearm: Does A Suppressor Count As Barrel Length (2024)

FAQs

Measuring Your Firearm: Does A Suppressor Count As Barrel Length? ›

If it is permanently attached (i.e. pinned and welded, or integral from the manufacturer) then yes. If you can unscrew it, no. Not with respect to the legal barrel length unless the suppressor is permanently attached / integral.

Does suppressor count towards barrel length? ›

Does a suppressor count when measuring barrel length? Yes and no. Typically no. However, the ATF will accept it as part of the barrel if it is permanently attached, meaning it's pinned and welded to the barrel.

Does a suppressor act as a barrel extension? ›

If you tried to add a barrel extension like that to a threaded barrel you're going to have a blowout at the connecting point. Does a suppressor count as a barrel length? Only if it permanently attached to the barrel (tack welded at a minimum).

Does a muzzle device count as barrel length? ›

The ATF procedure to measure the length of a barrel is to measure from the closed bolt or breech face to the furthest end of the barrel or permanently attached muzzle device. ATF considers a muzzle device that has been permanently attached to be part of the barrel and therefore counts towards the length.

What are the barrel length rules for ATF? ›

A rifle is subject to the NFA only if the rifle has a barrel or barrels of less than 16 inches in length. A weapon made from a rifle is also a firearm subject to the NFA if the weapon as modified has an overall length of less than 26 inches or a barrel or barrels of less than 16 inches in length.

Does a suppressor add barrel length for ballistics? ›

The only way a suppressor would count for overall barrel length would be if you permanently attach it to a given firearm in one of the ways mentioned in the definition above.

What is the best barrel length with suppressor? ›

You'll also experience the greatest amount of noise reduction with a suppressor on a 20″ barrel. Similar results will be had if you're dealing with other common barrel lengths, such as 18″ or 16″, which is considered the carbine length versus a rifle length.

How is gun barrel length measured? ›

2.1 When measuring the barrel of a firearm that has an integral chamber, the distance parallel to the bore axis from the muzzle end to the breech face (with the action closed) represents the length of a barrel. All measurements are made perpendicular to the bore axis at the farthest point of the barrel.

What length barrel is considered a SBR? ›

Short Barreled Rifle

Rifle having a barrel or barrels of less than 16 inches in length.

Is there a difference between a silencer and a suppressor? ›

Yes, your silencer is a suppressor and vice versa. There's no difference in the device itself, only in the name. Silencer is simply the original term while suppressor is the one that evolved over time to more accurately describe the function of the device in question.

What counts as barrel length? ›

The barrel length is the distance between the breech face and the muzzle end. Using a dowel rod, slide it down the barrel until it reaches the breech. Then you can measure the dowel rod distance using a yardstick or tape measure.

Does the length of a suppressor matter? ›

Pistol: 1.1-8.5” in length (some are configurable for length) and 1.1-1.375” in diameter. Length is the main contributor to how a suppressor sounds. The longer the suppressor usually means the more baffles or geometry inside the suppressor that slows down the rapidly expanding hot gases.

Does barrel length include compensator? ›

If that compensator is permanently attached, IE pinned and welded, then yes.

How does the ATF measure a barrel? ›

A rifle subject to the NFA has a barrel or barrels of less than 16 inches in length. The ATF procedure for measuring barrel length is to measure from the closed bolt (or breech-face) to the furthermost end of the barrel or permanently attached muzzle device.

What does the ATF consider a short barreled rifle? ›

(8) The term “short-barreled rifle” means a rifle having one or more barrels less than sixteen inches in length and any weapon made from a rifle (whether by alteration, modification, or otherwise) if such weapon, as modified, has an overall length of less than twenty-six inches.

Is a 16 inch barrel an SBR? ›

Generally, no. A rifle with a barrel (rifled) of at least 16 inches would not be a short-barreled rifle (SBR) under the National Firearms Act (NFA) regardless of whether it incorporates a “stabilizing brace” or traditional shoulder stock.

How does the ATF measure overall length? ›

The overall length of a firearm is the distance between the muzzle of the barrel and the rearmost portion of the weapon measured on a line parallel to the axis of the bore.

Does taking suppressor on and off affect accuracy? ›

Do Suppressors Affect Accuracy? The short answer is yes, suppressors do affect a firearm's accuracy – but not always how you might expect. Sometimes, your gun's accuracy might get worse when you attach a suppressor; other times, you'll actually see your accuracy improve.

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