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FAQs

At Liberty Suppressors, we want to make sure you’re prepared when it comes to your firearm and firearm accessory purchases. Learn all about purchasing the suppressors, silencer kits, and other firearm products from our site, as well as the answers to other common questions below. Get in touch with our team today if you have any further questions.


General FAQs

Purchase FAQs

How do I purchase a Liberty Suppressor? — The steps to owning one of our suppressors are simple. Here’s a basic rundown:

  1. Locate a Class III dealer in your state to handle your transfer.
  2. Place your order through Liberty Suppressors or your Class III Dealer.
  3. Pick up your prefilled ATF Form 4 packet, from your dealer.
  4. Complete your ATF Form 4 packet, which will require:
    1. $200 check payable to the ATF for your Transfer Tax Stamps
    2. Attach a passport portrait to the form. 
  5. Mail your Form 4 packet to the ATF. Allow a minimum of one month (four to six months on average) for processing with the ATF. Once your Form 4 is approved, we will send it back to your dealer and then you can go pick up your Libery suppressor or silencer kit!

That’s it! Your suppressor is now yours to enjoy for a lifetime.

“At the ear” Measurement FAQs

What is “at the ear” measurement? — The “At the Ear” or ATE measurement is the amount of pressure exerted on your ear drums by the sound waves produced by a gunshot. This is generally accepted as being the loudest and most important sonic parameter to consider when determining how effective a suppressor will be in protecting your hearing.

Why is ATE measurement important?The ATE measurement not only takes into account the sound pressure level (SPL) reduction of the suppressor, but also takes into account the noise attenuation provided by ear protection. This is important because most shooters wear some form of ear protection while shooting.

What are some examples of ATE measurement for a rifle with different adapters? — For an AR15 with 55gr ball ammo rifle, the ATE measurements were found to be the following.

  • Goliath 136.2 dB Average
  • Sovereign With Direct Thread Adapter 133.2 dB Average
  • Sovereign With Flash Hider Mount 134.1 dB Average
  • Mystic X With a Standard FBA 138.8 dB Average
  • Mystic X With Lopro FBA 138.9 dB Average

Tone FAQs

What is tone in regards to firearm silencers and suppressors? — The tone of a silencer is subjective to the individual and is more important than absolute decibel levels in the real world. The dB meter is great for scientifically determining that a certain design is safe for use, but in the end, the person designing the silencer needs to make sure the tone generated by the can will be pleasant to the ear as well as the meter. 

What makes Libery Suppressors stand out when it comes to tone? — There are many world-class 22LR silencers on the market today that measure less than 120 dB on a sound pressure level meter, but only one maker chooses to also apply the metric of tone when making silencers — and that maker is Libery Suppressors. 

How can I test the difference between Liberty and other firearm suppressors? To compare, get a Liberty Suppressor and a few silencers in the caliber you are looking for. Listen to them go off side by side on similar weapons, if possible. We feel that tonal differences make the silencer or break it for people, so try them out for yourself and you too will see how great Liberty Suppressors are!

Caliber and Compatability FAQs

Compatible Firearms

A few mainstream weapons come with threaded barrels that allow for the addition of silencers. These guns include the following.

  • S&W M&P Series Handguns
  • HK Tactical Series
  • SIG Sauer P Series Pistols
  • Glock Series Pistols — These do not have factory threaded barrels in the U.S., but they are easily obtained and work well with suppressors.
  • 1911 Pistol Designs  — These can be fitted with threaded barrels easily.
  • Springfield XD Series — Also can be made with threaded barrels.
  • Grand Power
  • Canik

There are many others that are compatible but are less common, so feel free to contact us if you don’t see your gun on this list. 

Also, remember that brand new guns might not work properly until they are broken in (250 rounds should do it) and some sub-compacts might not work with certain models — for example, the Mystic on a Glock Model 26 can be iffy at times. Full-size and mid-size versions are the preferred choices here when choosing a host firearm.

Non Compatible Firearms

Liberty Suppressors work on most rifles, with the exception of the following brands: Davis, Raven, Bryco, Jennings, Lorcin. The guns made by these brands  are designed for a specific pressure curve and the addition of a suppressor will make them fail during use. 

Also, if your weapon has an integrated barrel design such as the desert eagle, it will have to be custom machined to accept a suppressor and the addition of the suppressor might be enough weight to impede the proper operation of the weapon causing it to jam during use.

Really old guns are not good suppressor hosts either, these weapons are made with materials that are sometimes suspect in their integrity and we do not feel it is safe to use these weapons for suppressor use. The Nagant revolver comes to mind here even though people do tinker with it.

If you have to get a gunsmith to modify your weapon so you can add a suppressor, proceed with great caution as it is possible that catastrophic failure could result from this modification. Also, note that very thin barrels should not be threaded.

Please contact us if you are unsure if our silencers will work with your gun.

Thread / Mount FAQs

1/2-28 fits AR15 rifles in 5.56mm and 223 REM 223 Wylde and most 9mm carbines other than COLT

2. 1/2-36 fits COLT pattern 9mm carbines only.

3. 5/8-24 fits most centerfire rifles in 308 WIN, 7.62×51 (7.62NATO), 6.5Creedmoor and the like.

4. 9/16×24 fits some battle rifles such as the FN-FAL and some hunting rifles. It is also used occasionally with 300 BLK rifles on the AR15 platfiorm.

5. The booster should not be used on carbines

6. The booster should be used on almost all handguns that will take a silencer. Only handguns with fixed in place barrels do not need a booster.

7. The full size FBA is used on rifles primarily to lower chamber pressure in the blast chamber.


Paperwork FAQs

Please watch the following videos for a complete rundown of the paperwork process for purchasing a Liberty Suppressor.

Video (common questions for NFA paperwork)

Video (form 4 explained for trust or corporation)

Silencer FAQs

Get In Touch With Us

Have any other questions? Don’t hesitate to reach out to our team at Liberty Suppressors today!

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