Best Suppressor for Glock 19: Fit Chart for 6 Carry Pistols
Best suppressor for Glock 19 setups start at the barrel: Glock sells 1/2×28 threaded barrels, and the suppressor needs a booster to run.
In This Article
- What a Glock 19 Needs Before a Suppressor
- Glock 19 Suppressor Fit Chart by Pistol
- How a Suppressor Booster Works
- Glock Thread Pitch: 1/2×28 or M13.5×1 Left-Hand?
- Suppressor Height Sights for a Glock 19
- Best Suppressor for Glock 19: Five 9mm Picks
- 9mm Suppressor That Does Not Need a Booster
- Ammo and Reliability on a Suppressed Glock
- Threaded Barrel and Suppressor Laws Before You Buy
Originally published: October 23, 2026
Safety note. Fit and change barrels, sights and suppressors on an unloaded pistol only, check alignment with the pistol unloaded, and never fire a caliber larger than a suppressor is rated for. Specs and prices come from each maker’s own page, read October 18, 2026; prices change, so check the maker before you buy. No link on this site earns us a commission. Threaded barrels are restricted and suppressor ownership is banned in some states; check yours.
The best suppressor for Glock 19 pistols is a 9mm pistol suppressor (most people still say “silencer”) that mounts on a booster, because the Glock’s barrel tilts as it cycles and a suppressor bolted straight on stops it from cycling. The suppressor is the last part of the job, not the first: the pistol needs a threaded barrel in the right thread pitch and sights tall enough to see over the tube. Threaded barrels cannot be sold to buyers in several states and some states ban suppressors outright, so check your state before you order anything.
A suppressor booster (also called a Nielsen device or piston) is a spring-loaded coupling inside the back of the suppressor that lets the barrel move for a split second while the suppressor stays put. Get one of the three parts wrong, and the most expensive suppressor in the case turns your Glock into a single shot.
Glock 19 Suppressor Setup at a Glance
- Barrel: Glock’s U.S. store lists Glock 19 threaded barrels in 1/2×28 right-hand at $204.60, both out of stock on October 18, 2026.
- Booster: required on a tilting-barrel pistol like the Glock 19; not used on a fixed-barrel host like the Ruger PC Charger.
- Sights: the five suppressors below run 1.1 to 1.48 inches across, so factory-height sights usually disappear behind the tube.
- Thread pitch: match the booster’s piston to the barrel (1/2×28 or M13.5×1 left-hand), never the other way around.
- Price: the five suppressors in our table list from $674.95 to $1,099 at the maker.
What a Glock 19 Needs Before a Suppressor
Having worked behind the counter for over 20 years, I get asked “which suppressor fits my Glock 19?” more than any other pistol question, and the straight answer is a parts list, not a brand. (Glock owners hate that answer.) Three things have to be on the pistol before the suppressor matters.
First, a threaded barrel. Second, a booster with a piston that matches the barrel’s thread. SilencerCo’s own Glock guide explains why: Glock pistols “run on short recoil actions,” and the barrel tips up slightly as it cycles, so the weight of a suppressor hung on the muzzle can stop the slide from cycling (SilencerCo, “GLOCK Suppressed”). Third, sights you can see over the tube, or a red dot. Remember, the barrel is the part that is hardest to find, so start there.
Glock 19 Suppressor Fit Chart by Pistol
Find your pistol’s row, then buy in the order the last column says.
| Pistol | Factory threaded barrel and pitch | Booster needed? | Taller sights from the maker? | What to buy first |
|---|---|---|---|---|
| Glock 19 | Gen5, G19X, G45 and Gen3/Gen4: 1/2×28 RH, $204.60 each, both out of stock; none listed for Gen6 or V | Yes, short-recoil tilting barrel | None found; Glock’s sight page lists 7 sets, none labeled suppressor height | The barrel, then a 1/2×28 booster piston |
| Glock 17 | Gen3/Gen4 1/2×28 RH, in stock; Gen3/Gen4 M13.5×1 LH, in stock; Gen5 1/2×28 RH, out of stock; $204.60 each | Yes, same action as the Glock 19 | None found (same 7-set Glock sight page) | Match the piston to the barrel you buy, RH or LH |
| SIG P365 family | 3.7-inch (P365, P365-X) and 4.3-inch (P365-XL and non-comp X-Macro slides): 1/2×28 RH, $229.99, in stock; Fuse not covered | Yes, tilting barrel | No P365 set found; SIG lists a suppressor-height set for P226 XFive and P226X models only | The barrel for your slide length |
| Springfield Echelon | 4.5-inch kit (5.28 in. long) and 4.0-inch kit (4.78 in.): .5×28, $169.99, in stock | Yes, Browning-type tilting barrel (American Rifleman review) | Yes: U-Dot sets in RMR and DPP height, $79.99 | Barrel kit and DPP-height sights |
| S&W M&P9 M2.0 | Threaded Barrel Optics Ready Full Size: 4.625-inch barrel, .500×28 RH, $699 for the pistol on S&W’s store | Yes, tilting barrel | White dot on the threaded model; S&W lists optic-height white-dot sights on other M&P9 M2.0 models, and its optic-height night-sight models are law-enforcement only | The threaded pistol, then a red dot |
| Ruger PC Charger | Model 29100: 6.50-inch barrel threaded 1/2-28 from the factory, $919 MSRP | No, blowback; use a direct-thread mount or fixed spacer | No iron sights ship (maker spec: “Sights None”) | An optic, then a fixed mount for your suppressor |
Cells come from each maker’s page, read October 18, 2026; the booster column comes from SilencerCo, Silencer Shop, Rugged Suppressors, Shooting Illustrated and American Rifleman (all in Sources). RH means right-hand thread, LH left-hand. “In stock” means the maker’s own store. Glock’s store lists no threaded barrel for the Gen6 or V-series Glock 19 among the 10 threaded barrels on its barrel page.
How a Suppressor Booster Works
A tilting-barrel pistol is a balancing act between the slide, the barrel and the recoil spring. The Firearm Blog’s breakdown of the Nielsen device puts it plainly: “the vast majority of centerfire pistols use a tilting barrel,” and hanging a suppressor on that barrel “usually causes malfunctions,” often leaving you a “manually-operated single shot” (The Firearm Blog, “Breaking Down Nielsen Devices”).
The fix is mechanical. A threaded piston screws onto the barrel and rides captive inside the back of the suppressor, with a spring around it so the piston can slide fore and aft. When the pistol fires, the barrel moves and the spring lets the suppressor’s weight hang back for that split second, so the barrel can tilt and the slide can run. Rugged Suppressors says the booster “temporarily relieves the weight of the suppressor from the barrel, in order for the pistol to cycle” (Rugged Suppressors, attachment guide). Our suppressor mounting systems page covers the other mount types.
Think about it: the piston is the only part that touches your barrel, so that is where the thread has to match.
Glock Thread Pitch: 1/2×28 or M13.5×1 Left-Hand?
Both, depending on the barrel. Glock’s European site lists its 9mm threaded barrel as “M13,5×1 LEFT” (Glock Europe, threaded barrel). Glock’s U.S. store sells right-hand 1/2×28 barrels for the Glock 19 Gen3/Gen4 and Gen5 and the Glock 17 Gen3/Gen4 and Gen5, plus an M13.5×1 left-hand Glock 17 Gen3/Gen4 barrel listed “while supplies last.” A 1/2×28 piston will not thread onto a left-hand barrel, and you should never force one.
So read the box, not the forum: the piston has to say what the barrel says. Our thread pitch chart covers every common pitch by caliber.
Suppressor Height Sights for a Glock 19
SIG Sauer defines suppressor-height sights as iron sights “tall enough for a shooter to obtain a proper sight picture by clearing the circumference of a suppressor” (SIG Sauer glossary). That circumference is the problem: the five suppressors in our picks table run 1.1 to 1.48 inches across, and the factory sights on a carry pistol sit low on purpose.
Springfield publishes its Echelon sight heights, a good yardstick. Its low-profile set stands 0.163 inch at the front, the RMR-height set 0.250 inch and the DPP-height set 0.360 inch (Springfield Armory, Echelon U-Dot sight set). Glock’s own store lists seven sight sets and none is labeled suppressor height, so a Glock 19 owner is shopping aftermarket sights or adding a red dot. SilencerCo’s Glock guide calls suppressor-height sights “my first upgrade,” and I agree with it: a red dot fails eventually, and the irons are what you have left.
One maker designed around this. Dead Air says the Odessa 9’s 1.1-inch tube is meant to let you “fully utilize your stock sights” (Dead Air, Odessa 9). That is the maker’s claim; check your own sight picture with the pistol unloaded.
Best Suppressor for Glock 19: Five 9mm Picks
Each is a current 9mm pistol suppressor on its maker’s site, not marked out of stock, backordered or discontinued on October 18, 2026. All three makers here send buyers to a dealer.
| Suppressor | Length and weight | Diameter | What ships for a pistol mount | Maker price |
|---|---|---|---|---|
| YHM Sidewinder M2 (9mm) | 8.2 in., 8.8 oz; 8.35 in., 10.2 oz with piston | 1.375 in. | Mount listed as a 1/2×28 piston | $674.95 |
| SilencerCo Omega 9K | 4.54 in. (spec table; text says 4.56), 7.3 oz | 1.48 in. | 5/8×24 direct-thread mount, piston spring and retainer cap; no 1/2×28 piston named | $749 MSRP |
| Dead Air Odessa 9 | 7.75 in., 7.4 oz; 8.25 in., 10.1 oz with piston and spring | 1.1 in. | Pistons listed separately, $89 MSRP | $899 MSRP |
| Dead Air Mojave 9 | 5.89 in., 8.2 oz short; 7.64 in., 9.6 oz long | 1.405 in. | 1/2-28 piston included | $1,099 MSRP |
| Dead Air RXD910Ti | 7.7 in., 11.4 oz | 1.48 in. | No mount named on the page; Mojave pistons listed at $89 MSRP | $999 MSRP |
Maker pages, read October 18, 2026; weights with or without the piston as marked. Left out: Rugged’s Obsidian9 ($842), which its own page showed on backorder. Prices change, so check the maker before you buy. Our best 9mm suppressors guide compares more 9mm models, and the suppressor cost calculator adds up the suppressor, the dealer’s transfer fee, a trust and a mount.
Three makers print a sound figure, and none is a ranking. YHM lists a “Decibel Rating: 125 dB” for the Sidewinder M2; SilencerCo lists a 135.8 dB muzzle average for the Omega 9K on 9mm; Dead Air says it has “hovered just shy of 122dB” with subsonic ammunition in the Odessa 9’s full-length setup. Those are maker claims measured different ways, so I would not pick between them on the number.
My pick for a Glock 19 that carries a red dot is the one that ships with the piston you need. The Mojave 9 is the only suppressor in this table whose page says a 1/2-28 piston comes in the box. If you shoot iron sights and want to keep the factory set, the Odessa 9’s 1.1-inch tube is the one built for that job (plan on buying its piston separately, since Dead Air lists them on their own).
9mm Suppressor That Does Not Need a Booster
JK Armament’s ultra-light 105 series suppressors (especially the modular CCX 9mm) weigh only about 1.2–2.5 ounces and use a simple direct-thread mount, so they generally do not need a booster (Nielsen device) on most 9mm pistols. They work because that very low mass does not significantly slow or impede the short rearward movement of the barrel in a typical Browning-style short-recoil pistol, allowing the action to unlock and cycle normally just as it would unsuppressed, whereas heavier cans (usually over roughly 4.5 ounces) add enough inertia to prevent proper unlocking and therefore require a spring-loaded booster to isolate the suppressor’s weight from the barrel.
Ammo and Reliability on a Suppressed Glock
SilencerCo’s Glock guide says to “stick with 147 grain rounds and it should function fine,” and warns that true subsonic ammo “may turn this gun into a single-shot, but it will be very quiet.” Well, when a suppressed Glock stutters, check the piston and the ammo before you blame the suppressor.
Threaded Barrel and Suppressor Laws Before You Buy
Glock’s store says its threaded barrels are defined as “assault weapons” in California, Connecticut, Delaware, the District of Columbia, Illinois, New York and Washington and cannot be sold to commercial customers there. Springfield’s Echelon barrel pages list a slightly different set: California, Connecticut, D.C., Illinois, Massachusetts, New York and Washington. Read your own maker’s list and your state’s law, not ours.
Federally, ATF announced on October 9, 2026 that it “will not enforce the requirements for individuals to apply and receive ATF approval before making or transferring” a suppressor, and “also will not enforce the NFA’s registration, tax-stamp or related requirements” for those items (ATF, NFA transfer guidance). The dealer still runs a Form 4473 and a NICS check, and ATF says the guidance “does not supersede state and local laws.” Suppressor possession is still a state question, covered on our suppressor laws by state page, and our NFA ruling tracker follows the federal side.
Most of you don't have a suppressor on the deer rifle yet. Among those who do, titanium leads steel by more than three to one.
Frequently Asked Questions
Is a Glock 19 worth suppressing?
Yes, if you will add the barrel, booster and sights it needs. The parts beyond the suppressor run from $169.99 to $229.99 for a maker’s threaded barrel in our chart, and Glock’s own Glock 19 barrel is $204.60 when it is in stock.
Do Glocks work well with suppressors?
They do with a booster. Without one, the suppressor’s weight on a short-recoil barrel usually stops the slide from cycling, so every shot needs a manual rack.
What sights do I need for a suppressed Glock 19?
Sights tall enough to clear a tube 1.1 to 1.48 inches across, or a red dot with taller irons as a backup. Glock’s own store lists no suppressor-height set, so these come from aftermarket sight makers.
What is the quietest suppressor for a Glock 19?
No single test in our sources measured these five on the same Glock, same ammo and same microphone position, so we do not rank them. The makers’ own figures (125 dB, 135.8 dB, just under 122 dB) were measured different ways and should not be compared.
Will a Glock 17 suppressor fit a Glock 19?
The suppressor does, because it mounts to the piston, not the pistol. What changes is the barrel: each model needs its own threaded barrel, and the piston has to match that barrel’s thread, 1/2×28 right-hand or M13.5×1 left-hand.
The suppressor is the fun part, and it is the easy part. Buy the barrel first, match the piston to its thread, and get your sights up where you can see them. Then come see us and pick the suppressor.
Sources: Glock, “Threaded Barrel G19 Gen5, G19X & G45 RH”; Glock, “Threaded Barrel G19 Gen4 RH”; Glock, “Threaded Barrel G17 Gen4 RH”; Glock, “Threaded Barrel G17 Gen4 LH”; Glock, “Sights and Tools”; Glock Europe, “GLOCK Threaded Barrel”; SIG Sauer, “P365 9mm Threaded Barrel, 3.7 in.”; SIG Sauer, “Suppressor Height Sights”; Springfield Armory, “Echelon 4.5 in. Threaded Barrel”; Springfield Armory, “Echelon U-Dot Tritium / Luminescent Iron Sight Set”; Smith & Wesson, “M&P9 M2.0 Threaded Barrel Optics Ready Full Size”; Ruger, “PC Charger Model 29100”; Ruger, “PC Charger”; American Rifleman, “Springfield Echelon: The Leading Edge Of Self-Defense”; Shooting Illustrated, “Review: Ruger PC Charger Pistol”; SilencerCo, “GLOCK Suppressed: Everything You Need to Know”; The Firearm Blog, “Silencer Saturday #368: Breaking Down Nielsen Devices”; Rugged Suppressors, “Pistol Suppressor Attachments Guide”; Silencer Shop, “Suppressing the SIG P365”; Silencer Shop, “Suppress Your Smith & Wesson M&P”; ATF, “ATF issues guidance on National Firearms Act transfers”; YHM, “9mm Sidewinder M2 Suppressor”; SilencerCo, “Omega 9K”; Dead Air, “Odessa 9”; Dead Air, “Mojave 9”; Dead Air, “RXD910Ti”; Dead Air, “Wolfman”.
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