A Suppressor on a Glock 19… Does It Really Work?

Lenny Magill goes over a brief history of suppressors and then shows how they work. He goes through a series of tests, indoors and outside, to see if they are actually effective for hearing protection.
Video intended for entertainment purposes only - do not try this at home.
Tell us what you think of this video in the comment section below.
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[@Britishshooter]

Not many Americans appreciate that in the UK we normally have suppressors on all our rifles, from .22 to full calibre 308 etc. If you forget to specify a suppressor for any new calibre that you are applying for on your licence, the Police licensing authority usually remind you to add it. Here it is regarded as a necessity under Health and Safety as head mounted hearing protectors do not always protect the hearing in all conditions. You cannot hunt deer on crown or forestry commission property without a suppressor fitted. We have also been able to purchase integrally suppressed shotguns for over 50 years. A popular model is an integrally suppressed Mossberg 500 in 410, 20 or 12 gauge.

[@clblanchard08]

You know what...you just made me realize why suppressor ownership in the "freedom land" is so expensive. It's related to health and safety. This shit might as well be just tacked onto our stupid fucking health insurance premiums. Why own a simple suppressor when I can simply buy $200 electronic earmuffs that allow me to hear without damaging the hearing of anyone around me? God damn this stupid country is so fucking selfish even with it's biggest problems!!!! Edit to add: We can let people shoot up schools all day long, but fuck me if I want to plink and hunt semi-quietly. The more I think about it the more this stupid shit just enrages me.

[@mikesanservino8306]

in the US, our politicians are particularly stupid, corrupt and gutless while a large portion of our population are ignorant, stupid and easily swayed by the dimwits in Hollywood.

[@UmamiPapi]

Imagine the UK being more 2A in a way than the US. People here are so behind on suppressors. They watch too much Hollywood and think only hitmen need them.

[@armorist6570]

You Bongs have it pretty nice when it comes to that

[@COBALT_iLLADELPH]

Rather not.. I prefer not have too go though all that BS work to even own a gun in UK.. I like walking in store with cash and leave with gun in 30mins..

[@hotdognobun]

Lenny Maglock looks reborn once he left CA to good ol Nashville

[@DBR00]

Yeah. Lenny’s looking good!

[@URBANAMERICANTAC]

Makes sense. All those years being into firearms and yet, so far away from really being able to enjoy his 2A freedoms. Now that he’s in Tennessee, the sky’s the limit. Reminds me of the insanity my wallet felt after I moved from NJ to PA.

[@latronwilliams7578]

you are right.Uncle Lenny looking more relaxed.

[@springbloom5940]

Dude is such a squirrel. But, hes got a great attitude.

[@Sciz85]

Them Benjis do wonders to the skin

[@strider8933]

A NUMBER of European countries REQUIRE the use of suppressors for both range and hunting. It is actually considered impolite (or unlawful) to NOT use one.

[@markjordan1765]

HAHAHAHAHA. I love that.

[@Glockhead1]

those european countries are braindamaged. Sucks to live there then

[@darrenw187]

Repeal the NFA! Abolish the ATF

[@ItsEdSilha]

Lighten up Francis

[@jonathanschmid4056]

Amen...there's s bill put in to just that with senators from GA, Az, and FL.

[@Tom_H327]

Texas has entered the chat

[@clemfandango5908]

Full auto and suppressed weapons should be regulated..

[@darrenw187]

@@clemfandango5908 All gun laws are an infringement of our rights!

[@peterweikel7123]

The safety feature alone is worth the price of admission. Reducing the noise reduced the impact on your hearing weather you are hunting or range shooting. They just make total sense

[@Ten_Mil_Will]

Absolutely! The stigma associated with silencers is complete horse shit. Liberal logic - muffler on your car or Harley, REQUIRED. A muffler on your pistol - Absolutely not! Complete lunacy. If you do not have any "cans" yet, take the plunge just be careful, they have a habit of multiplying quick. I have a total of 4 stamps now lol (2 cans, an SBR, and a full auto).

[@aaronj08ar]

​@TrUmP AmErIcA You have to pay more taxes. Each suppressor, sbr, pre 1986 full auto etc. requires a separate $200 tax stamp for each individual item.

[@wehrewulf]

Whether, not weather.

[@peterweikel7123]

@@wehrewulf sorry, didn't mean the offend the frailties of the grammar police

[@Bulldog75stp]

If the "tax stamp" suppose to be a governmental vetting process, then why aren't you allowed to have the suppressor in certain states even after the vetting? It's all a money racket!

[@lawesuipath7126]

i'm wondering if it's also a registration racket too

[@timgraham7851]

ATF is a division of the treasury department. It's always about money.

[@thisissparta8884]

More like control.

[@otherbob23]

Hey, just shut your mouth and pay your protection money or they'll shoot you dog, destroy your house and or business, and kidnap you and or your family.

[@carminemurphy4836]

@@otherbob23 They will do it anyway.

[@mattnsac]

Its not a 20% change in amplitude, every 10 dB is 10X more than previous so a reduction of ~20dB is actually 100x quieter.

[@bermchasin]

also that sound reading was hardly accurate.

[@JohnLloydScharf]

Everything over 120 db causes damage immediately. 130 dB is 10 times loader. 140 dB is 100x louder.

[@Starwarsgames66]

@@bermchasin I agree that the readings were clearly incorrect however the same equipment was used for both tests so it still is fair to compare.

[@TheLeoSzilard]

10bB is a factor of 10 in power, not amplitude. For amplitude, it’s 20dB for a factor of 10 reduction. Still very good though.

[@niio111]

The 22db noise reduction is logarithmic or 99% reduction in sound pressure but 75% reduction in perceived noise. Still not hearing safe.

[@Starwarsgames66]

Pro tip: put a 19 lb recoil spring on your Glock 19 and that will delay the slide action by a little bit. It’s like going from carb to H buffer in an AR. It’ll give you a lot quieter performance. I did this on my Glock 19 with my SilencerCo 36M and it is insane! It’s far quieter

[@flymax7377]

damn what ammo are you using because a 19 pound spring with a supressot will not cycle

[@romebowermaster5060]

what kinda barrel u running w that silencerco suppressor and which supressor model did u buy? im about to build a gen 5 19 and what the absolute best setup (reliability and quietest)

[@jonboy9734]

It’s actually best to lighten the recoil spring for suppressed pistols to make them more reliable. I have a g43x that would hiccup once every 20 or so rounds. Changed the spring to 15lb . Runs like a sewing machine.

[@irishdixie77]

​@@jonboy9734 what can are you runnin?

[@jonboy9734]

@@irishdixie77 banish 45 for my pistols .

[@URBANAMERICANTAC]

All of my pillows have a tax stamp.

[@kingboom777]

all my pillows and oil filters are undocumented refugees

[@carminemurphy4836]

From the My Pillow guy ?

[@infteamleader]

Never take your paperwork or give your suppressor to anyone trying to "confiscate" it.

[@mattnsac]

word, make a copy of it and carry that. If they confiscate your actual paperwork, you will have to redo all the BS hoops that are necessary to get the stamp the first time.

[@infteamleader]

@@mattnsac Is there a requirement to carry your paperwork? I've yet to see one.

[@mrbfox1775]

@@infteamleader no there is not

[@Ten_Mil_Will]

@@mattnsac Nah, I wore my Form 4s out by folding them, carrying them, getting them sweaty, etc. BATFE sends you duplicates, if you ask em. As to the question- required to carry or display on demand...... according to my Class3 dealer you are NOT. He says that, as a tax document, you can not be compelled to show it without them having a warrant. I carry mine just because not all my "stamps" are for cans. One is for a Full Auto worth stupid moneye and I'd be very confrontational about someone trying to remove it from my possession.

[@jonathanyoung7763]

@@Ten_Mil_Will “confrontational”😆💪🏼🇺🇸

[@nk-dw2hm]

A 20 dB reduction in sound from 120 to 100 (rounded) is drastically more than 20% because sound uses a logarithmic scale.

[@soulstarr9589]

exactly, 3dB is times two, 10dB is times ten and 20dB is times a hundred

[@21scavage]

Got a full tour of the store the other day. Seriously impressive.

[@glockstore]

Thanks, we enjoyed having you! Next time, you'll have to stay longer and try out the ranges.

[@DC632A]

The less my ears ring indoors after a self defensive event, the quicker I can get back to sleep 😴

[@justinhorn2864]

Yes and sleep good knowing you saved someone else from getting messed with

[@slobkaags]

AMEN !

[@timgraham7851]

Clean up can wait until morning.

[@leemozingo6817]

Bruh the thought in Lenny’s brain ( and eyes ) when talking about “lefty tighty, righty loosey” killed me lmao. He is literally the man period. Money man has never heard of reverse threads..but his theory of why glock threaded barrels are reverse threaded had me rolling. What a legend bro. He could sell water to a shark.

[@toshakreig]

water to a shark, Agreed.

[@DrDiff952]

So glad you are finally out of COMMIEFORNIA!

[@proZach380]

A few years back, I purchased a Glock 21SF with a factory threaded barrel. For the life of me, I couldn't determine the thread pitch...it's not marked on the barrel, noted in the manual, or promoted anywhere on Glock's website/catalog. I attended an event at a local range where I met a Glock sales rep, and even he didn't know! FYI, it's 16x1 LF

[@eternalwisdom1]

The thought of an RSO trying to confiscate my silencer really makes laugh.

[@SonotCali]

Hats off to Mr. Lenny McGill. You are one of the people who helped me fall in love with Glocks. I’ve watched the Glockstore videos for as long as I can remember. I even try to mimic your voice. Thank you sir. A true Glock pioneer 👏🏽👏🏽👏🏽

[@operator001]

Glad I live in a state that allows the purchase of suppressors. I have two so far. One for my 556 AR and one for my G17 Gen 5. Great video, Lenny!

[@johnstockton8138]

i live in california, not only can you not own a silencer you cant even have a threaded barrel on your gun. If you want a compensator it has to be permanently welded to your gun. These laws make no sense. And they believe you cant commit mass shootings if you limit magazine sizes to 10 rounds lol.

[@GTFBITK]

@@johnstockton8138 those laws save lives though ;)

[@mikesanservino8306]

@@johnstockton8138 I moved out of that state in 1989 and swore I'd never move back...beautiful state occupied by a population in which 80% are imbeciles and liberals (I know, that's repetitive ). I grew up there...

[@trix9803]

@@GTFBITK Rotfl 🤣 I hope you’re joking

[@MrHealthWellness]

One of the best videos I’ve seen explaining the basics of suppressors/silencers.

[@dylancowmeadow4280]

Decibels (tenths of a bel) use a logarithmic scale. One bel is a 10x difference in loudness, so 20 decibels is a 100x difference. Going from 118db to 98db is not a 20% reduction, it's a 99% reduction in sound level. Unfortunately, your ears perceive loudness on a logarithmic scale too (with a different base), so a 99% reduction probably sounds like a 75% reduction in loudness.

[@khawarjillani7697]

This gentleman can stretch any 02 minutes video to 10 minutes.

[@scanalyst492]

This is a great video for anyone considering a suppressor. I bought a suppressor from the Silencer Shop for my 9mm Walter PPQ. It took about 10 months for me to get my suppressor. The actual sound suppression is about 30 dB. When I bought a threaded barrel for the Walther it came with a stronger recoil spring with instructions to use that spring when shooting with a suppressor. Using a 147 grain bullet I had issues with the action so I went back to the original recoil spring. You will get more blow back gasses with a suppressor so wear glasses. The Walther is my primary home defense weapon so if I had to use it inside the sound unsuppressed would degrade my ability to hear. One more thing, I think a suppressor works better on a gun were the barrel does not move.

[@mikesanservino8306]

a properly designed suppressor will greatly reduce any gas blowback into your face. You are correct, barrels that do not move during the firing cycle are better hosts for suppressors UNLES you use a booster in conjunction with your suppressor on a handgun. Look at GSL Technology suppressors. GSL doesn't do marketing hype, just excellent engineering. The owner of GSL, Greg Latka, has forgotten more about suppressors than most in the suppressor market will ever know. He's been in the field for 40+ years.

[@Glockhead1]

anyone who wears glasses while firing a gun has lost his balls.

[@jonboy9734]

@@Glockhead1if I’m at the range I do. If I don’t, I shoot left handed and get all kinds of unburnt gunpowder in my eyes.

[@ThePatriotParadox]

So glad you're down here in TN. a "FREE STATE" as I am!!! Can really enjoy all the fun of different firearms accessories.

[@johncarter6238]

I am also happy to live in a "FREE STATE Arizona

[@ThePatriotParadox]

@@johncarter6238 I wish we had constitutional carry here

[@carminemurphy4836]

@@ThePatriotParadox But you have Constipation-al carry in all States, you have a right to be Constipated. 🙄

[@luisvelazquez9905]

Can’t wait to come see the new and only Glock store I’ll go to !!

[@1979ath]

Very nice presentation and info. I would add a shooting test with both 115 supersonic vs 147 or 158gr sub sonic.

[@martdod]

Should have used subsonic ammunition. That would have been interesting to hear the difference between subsonic and regular ammo.

[@noyzbox6108]

Was awesome meeting you at the store in Nashville a few days ago. Top notch facility for sure !

[@earldelsanto]

As I said any oil filter more or less same size will work the same. It's not the whisper Hollywood portrays

[@earldelsanto]

Lenny with all the overkill on safety you Internet shills pretend here you are screwing a suppressor on with gun loaded. A Glock with no manual safety at that?

[@jtuttle11]

The sound reduction in decibels is not the same as an equal percentage. 20 decibels is not 20 percent. It's more like an exponential curve.

[@joeburger3826]

30 years!!?! Time to stop robbing liquor stores suppressed! Thanks for the tip Uncle Lenny!!!

[@BigDre357]

Great video…I fell in love with that MP5!!!

[@lilmike1780]

I work ten mins away I hope you are there this Saturday, is the shop open for everything? I might have missed a update but I try not to mr McGill. Soooo very glad you came to our city

[@jerryrigger3040]

That was fun, at the end! My wife even enjoyed it, she shot a P90 so appreciated keeping on target.

[@shanedriver9094]

Lenny is having fun again. Welcome Lenny

[@zimmerae]

A Conjugal visit! My Gawd Lenny, that was frickin’ brilliant. Almost fell out of my chair laughing.

[@mrnobody2873]

I can see there is some difficulty aligning the threads initially whenever you attach it. Depending upon the thickness and the angle of the initial slope of the lead in to the thread, in both or either of the interfacing devices, you can experience a drastic change in the feel of the threads engaging. Familiarity with your specific equipment does play a part too. Having said that, altering the machining profile of the lead-in to the thread in specific ways can allow you to effectively counter rotate the thread interface to align the thread lead-ins on both devices without excessive wear and tear to either device. To put that into more familiar terms or experience.Take a standard bottled beverage with a resalable cap. Remove it then place the cap at the end of the bottle while turning it the wrong direction. When the threads are properly aligned it will jump slightly then fall, allowing you to tighten them without misalignment. If the thread profile on the barrel and/or suppressor is designed well with a minimal, but tactile jump on an initial counter-rotation alignment step, you should be able to thread a suppressor reliably every time without excessive wear on either device.

[@christianricci140]

I love the silence...

[@viking-vise9255]

Great video Lenny, thanks. Conjugal visits LOL!!! The suppresor is nott reducing the sound by only 20% since decibel is a logarithmic scale the sound drop is much, much more.

[@earldelsanto]

Much much much less

[@tangledline]

31:25 lol. We do this very often at times of excitement with suppressors. (the thud of the ear protection hitting the ground)

[@keithspencer9165]

Great vid! I’d like to see some accurate db levels with a good meter. Non-suppressed should be registering closer to 170db

[@JonHosford]

attack speed is too fast for the phone mic to actually register the max loudness.

[@Richard-ej4zi]

Hello, Lenny, You are simply wonderful. Thank you.

[@gobucs3146]

I have one suppressor that screws directly onto the barrel righty tighty (5.56) and I used a auto o-ring and it keeps it from coming loose. Literally never had to tighten it. My other one ratchets onto a compensator so it never comes loose either.

[@Lives.2.Ride.]

Cool video thanks Lenny!!🐐

[@stephenscott963]

Do you have to get separate stamps for each suppressor? Great video, keep up the great work!

[@doubletap800]

Each NFA item needs it’s own stamp. So yes each suppressor needs a stamp. Well worth it.

[@lloydlongsr.8261]

Yes you will...

[@KevinMcMullen.]

Man oh man that mp5sd. Can't wait till mine shows up.

[@amazingpulsation9325]

Lenny is an amazing machine !

[@babayagalawless7046]

Lenny has a way of selling products he has made me spend almost as much money as Hickok45 has hah but thanks to Lenny my Glocks are as functional as a Swiss Army knife and as reliable as a Rolex watch so thank you Lenny

[@toshakreig]

amen to that.

[@Johnny_Bee]

My GEN5 G45 MOS FS with OEM Glock threaded barrel has 1/2 - 28 RH threads.

[@chrismccool2731]

I know Lenny has the money but that phone holster is a bold choice. I’d be worried I’d break that thing in half everyday!

[@Bobsteroid]

147gr would have been nice to see/hear for comparison but overall excellent video! :-) PS: suppressed slowpoke .45ACP would be cool...

[@Jasonbourne19741]

GREAT STUFF GREAT INFORMATION THANK YOU SIR.

[@lancewalden5404]

Try it here in East TN in the hollows. Sounds like a cannon going off.

[@lucasblanchard47]

Isn’t the first round through a suppressor usually louder for some reason? Because of the lack of gases in it or something?

[@doubletap800]

Thats called first round “pop”. Successive rounds fired will be quieter.

[@lucasblanchard47]

@@doubletap800 I wish he would have fired a few more rounds after the first one. Just to see the difference.

[@doubletap800]

@@lucasblanchard47 Me too. When i shoot mine you can really hear the difference.

[@henrynunn1991]

MP5s are so much fun! Sometimes I wish I lived in Tennessee.

[@joegasparro2395]

Haven't checked in on this channel is a couple years....you moved out of CA! Congrats! Let's get a location down in Florida now!!!

[@crujones4046]

I love that “A conjugal visit for your suppressor” The holes a little tight though

[@normandegeorge6526]

One of his best videos

[@basti080891]

35 minute of video to say "yes", good job!

[@oncologyman]

Fantastic video

[@GunSlinger_Peanut]

Great video

[@masterk5066]

I saw a guy SCREW ON a particular type of oil filter onto his threaded barrel & the shit actually screwed on no issue & deadened a lot of the sound when fired lol

[@w0lf1969]

I'm In NC but I'm Coming to Nashville to check out this facility. Be there Lenny!

[@lcifermorningstar191]

Thank you for the history lesson and demo. However, I would like to see you shoot 5 consecutive rounds out a suppress Glock with subsonic ammo.

[@johnquandt8795]

FYI. The decibel is a logarithmic scale, so a 20 dB difference is a 10x difference in amplitude.

[@mikegurley6018]

I would have liked to hear the comparison with subsonic ammo

[@m.k.7199]

There are suppressors that are nearly silent, at least to TV silent. They have an endcap swipe that blocks the escaping gasses. When used with subsonic ammunition, the first couple of rounds will be relatively silent (like TV suppressors). Unfortunately, ATF has designed the swipes as themselves as suppressors. You can buy the Ruger 10/22 with the suppressed barrel, shooting suppressed ammunition, is nearly (TV) suppressed out of box. E

[@nitrocell9287]

keep that to yourself fool.

[@johnbennett2855]

Db is logarithmic so 10 dbs reduction is much more than 20 percent

[@paulcharlton4788]

I think it reduces it by 90% 👌👌

[@M1Ascoutsquad45]

I like this guy personality 👍🏽

[@fredjones5327]

Amazing video where can I order one of these for my Glock 26??

[@tomlee252]

The difference is like an M80 down to a Fire Cracker in sound, hopefully some day they can suppress even more, what stops someone from being able to take to another state

[@bgood2167]

Lenny is so awesome!

[@lisocampos8080]

Glocks have an upward tilting barrel. Do suppressors cause premature wear and tear at the fulcrum point vs fixed barrels?

[@alewis8765]

13.5-1 is metric threads. 13.5mm diameter, 1mm per thread. In some other countries it's easier to buy a suppressor than a gun. Shouldn't be that difficult in the US.

[@mikecallahan8234]

Hiram Percy Maxim was also instrumental in creating the ARRL (Amateur Radio Relay League.) An organization for Ham Radio.

[@CenterMassContent]

Lets start referring to them as Mufflers from now on it would redefine the image & associations the non shooting public have about these devices. Also best parts of video: START‐>25:35 when Lenny says "Gong" play‐‐>25:49 & for finale play ‐>25:43

[@DiscoBiscuits.]

*DB's are measured using a logarithmic scale* That means a reading of 100db is *1,000,000,000 louder* than a reading of 10db. If a suppressor can take you down to the 90db range, that's good because that's about the same as city traffic.

[@danielbishop7187]

So then does the left hand thread pitch of the glock barrel prevent the suppressor from loosening?

[@RonDicken1971]

Talking about a conjugal visit with a suppressor made me laugh!

[@mikeogden5256]

Hell Yes! Back Yard plinking…. !

[@tomd3458]

Flexing that MP5 SD. I see ya Mr. Magill....

[@shawnmycal]

Love you Lenny 🙏🏽🙏🏽

[@jeffreyfranco6411]

Great Video Lenny. Living in Mass. can be a drag....

[@danhirsch6554]

Can you do a video using subsonic ammo with the Glock 19 with suppressor?

[@thedesk5144]

Kick ass videos!

[@10milliBuddha.]

With the new suppressor law in Texas’s man I can’t wait to get one

[@alessandromatteo8365]

I hope every state follow Gov Abbott and the Great State of Texas .... because the aft and their bs nfa is most definitely infringements on 2nd Amendment...

[@sinjinrides689]

Wish you would have shown the decibel readings when you shot outdoors

[@Tapwater45.]

Lenny Magill any (Promo Code)I can use for my purchase of the DD Premium Replacement Barrel for my glock 19?

[@JSPartre]

Very interesting! I think it's one of the few gun related laws that are more lenient in France (and Europe for that matter). In France as long as you prove you own the gun legally, you can freely buy suppressors.

[@jacobcarlson8151]

Sweet new videos

[@jimdandy6850]

Seems like the suppressor makes the 9mm sound like a .22 long rifle. Hope to see you when I head north to TN someday soon.

[@tomcowell7128]

With regard to UK - US expressions, here in the UK 'silencers' or moderators are commonly called 'cans' or suppressors. And, in general, are a fraction of the price you pay in the US, and a lot easier to get.

[@conducingmeat3]

Where do we find the discount codes for checkout?

[@davidrusso9978]

FYI the cell phone app that reads sound is much less accurate then a sound level meter. What is 5he price of a factory glockenspiel 17 and 19 suppressor threaded barrel?

[@arose001]

Fantastic!!

[@midnightsailor1]

I liked your video all the way up to the point where you went outside and didn't bring or use the sound decibel meter....I was like WHAT??? NO METER? That would have been useful to compare both inside and outside and also difference between suppressed and unsurpassed outside.

[@SavageVoyageur]

147 grain is what you need to use. Apply never seize to every part inside the suppressor, it makes it so easy to clean.

[@davva360]

So I am just beginning to research suppressors. I have a pistol with a threaded 1/28 thread and a pistol carbine in the same 9mm caliber with the same 1/28 thread. Am I correct in thinking I could buy one suppressor and it would work theoretically on both?

[@donoliver9637]

It would but you would need a booster and piston for the handgun.

[@user-lj2gx2bh8p]

Lenny’s such a pure soul

[@68cutty]

have a glock 23 gen 4 40 cal i would like a suppressor but dont want a bunch of issues just to have a suppressor on my tool what is my options thx stefan from enumclaw washington

[@op_s_lead]

Cheap “fluid entrapment device” suppressors come through Cali ports from China I heard from a friend with some 165 grain Hush sub sonic ammo it sounds just a hair quieter than an air nail gun roof installers use. Just my opinion.