Last updated October 25, 2026
Some of the links below are affiliate links, meaning at no additional cost to you, we may earn a commission if you click through and make a purchase.
A threaded barrel lets you run a suppressor or a compensator on your Glock 19, and it’s one of the easiest upgrades you can make. But Glock barrels are made for specific generations, and buying the wrong one means it won’t go in your gun. That matters more than ever now that the Gen 6 is out, because almost no aftermarket barrel fits it yet.
So we checked every threaded Glock barrel in the feeds of the 200+ retailers we track on October 25, 2026, then took each pick’s fit from the maker’s own page, not a retailer listing. Here are the six worth buying, with a live price box for each.
Table of Contents
How we tested: Every pick here is ranked against our testing methodology. Minimum round counts, accuracy and reliability protocols, the failures that disqualify a gun.
Best Glock 19 Threaded Barrels at a Glance
| Barrel | Best for | Fits (per the maker) | Price on October 25, 2026 |
|---|---|---|---|
| Faxon Threaded Barrel for G19 | Best Overall, and the Only Gen 6 Pick | Duty Series: Gen 2 to 6, G45, G19X. Match Series: Gen 2 to 5 | About $108 to $199 |
| SilencerCo Threaded Barrel (Glock 19) | Best for Suppressor Owners | Gen 1 to 5, G19X, G45 | About $144 to $169 |
| Zaffiri Precision G19 Threaded Barrel | Best Match-Grade Upgrade | Gen 1 to 5, G19X, G45 | About $117 to $124 |
| Lone Wolf LWD Threaded Barrel (Glock 19) | Best Budget Barrel for Older Glocks | Gen 1 to 4 only | About $115 |
| GLOCK Factory Threaded Barrel (G19 Gen 5) | Best Factory Option for Gen 5 | Gen 5, per the listing | About $190 |
| GLOCK Factory Threaded Barrel (G19 Gen 1-4) | Best Factory Option for Older Glocks | Gen 1 to 4, per the listing | About $210 |
Check Your Glock 19 Generation First
Glock barrels aren’t interchangeable across every generation. Most aftermarket Glock 19 barrels are made for Gen 1 to 4, Gen 1 to 5 or Gen 5 only, and the Gen 6 changed the barrel again. Check the generation on your slide or frame before you order, then match it to the maker’s fit list, not the retailer’s title.
- Gen 6: Faxon’s Duty Series is the only threaded barrel we found that its maker lists for Gen 6. None of the 766 threaded Glock barrel listings in our feed mentioned Gen 6.
- Gen 5: Faxon, SilencerCo and Zaffiri all list Gen 5 fit, plus GLOCK’s own Gen 5 threaded barrel.
- Gen 2 to 4: every pick here fits except GLOCK’s Gen 5 barrel (Faxon starts at Gen 2), and Lone Wolf is the cheapest stainless option.
All six picks use 1/2 x 28 threads, the standard pitch for 9mm Glock barrels, so they take the same 9mm compensators, thread protectors and suppressor mounts.
Two Brands We Left Out
True Precision and Rival Arms both had threaded Glock 19 barrels in our feed. We couldn’t confirm their fit on the makers’ own sites: True Precision’s site didn’t load for us on October 25, 2026, and rivalarms.com now forwards to a domain-sale page. Retailer titles for both disagreed on generation, so we didn’t recommend either until we can check the maker.
1. Faxon Threaded Barrel for G19: Best Overall, and the Only Gen 6 Pick
- Fits: Duty Series: Gen 2 to 6, G45, G19X. Match Series: Gen 2 to 5
- Threads: 1/2 x 28
- Finish: Nitride (Duty); flame fluted, several finishes (Match)
- Price on October 25, 2026: About $108 to $199
Pros
- Duty Series fits Gen 6
- Cheapest barrel here at the maker
- Two versions for different gens
Cons
- Duty Series not in our feed
- Match Series stops at Gen 5
- Gen 6 cut may wear sooner
Faxon is the one maker we found that sells a threaded Glock 19 barrel for the Gen 6. Its Duty Series barrel is listed for Gen 2 to 6, plus the G45 and G19X, and per Faxon’s product page, barrels from a certain job number on include “the Gen 6 relief cut.” Faxon is honest about the trade-off: the barrel is “Gen 6 compatible, however increased wear in the area of the relief cut is possible.” It was $99.00 at Faxon on October 25, 2026.
The Duty Series wasn’t in our feed, so the price box below shows Faxon’s flame-fluted Match Series threaded barrel, which Faxon lists for the G19 Gen 2 to 5. Retailers had it from $108.00 at Optics Planet to $198.55. Buy the Duty Series for a Gen 6 and either version for a Gen 2 to 5.
Best For: Gen 6 owners, and anyone who wants a good threaded barrel for about $100.
2. SilencerCo Threaded Barrel (Glock 19): Best for Suppressor Owners
- Fits: Gen 1 to 5, G19X, G45
- Threads: 1/2 x 28
- Finish: Black nitride or stainless
- Price on October 25, 2026: About $144 to $169
Pros
- Made by a suppressor company
- Fits Gen 1-5, G19X and G45
- Four stores had it
Cons
- No Gen 6 version listed
- Costs more than Faxon
- Plain, no fluting
SilencerCo makes suppressors, so its barrels are built to carry one. Its threaded barrels are compatible with “G19 Gen 1-5 G19X, G45,” per SilencerCo’s barrel page (archived July 2025), with the Glock 19 version threaded 1/2 x 28.
On October 25, 2026 our feed had it from $143.65 to $169.00 at BattleHawk Armory, Optics Planet, Shooting Surplus, Sportsmans Outdoor Superstore. If you already own a SilencerCo can, this is the obvious match.
Best For: Owners running a suppressor on a Gen 1 to 5 Glock 19.
3. Zaffiri Precision G19 Threaded Barrel: Best Match-Grade Upgrade
- Fits: Gen 1 to 5, G19X, G45
- Threads: 1/2 x 28
- Finish: 416R stainless (other finishes available)
- Price on October 25, 2026: About $117 to $124
Pros
- Thread protector included
- 416R stainless, heat treated
- Fits G19X and G45 too
Cons
- No Gen 6 version listed
- Only one store had it
- Maker site blocks some visitors
Zaffiri builds match-grade Glock barrels and slides. Its threaded Glock 19 barrel is “Compatible for Glock® 19 / 19x / G45 Gen 1-5,” with a “1/2 x 28 muzzle” and a thread protector in the box, per Zaffiri’s product page (archived May 2023; current retailer listings still say Gen 1-5).
Our feed had it from $117.09 at GunDeals on October 25, 2026. Compare it with True Precision in our True Precision vs Zaffiri guide.
Best For: Shooters who want a match-grade stainless barrel with a protector included.
4. Lone Wolf LWD Threaded Barrel (Glock 19): Best Budget Barrel for Older Glocks
- Fits: Gen 1 to 4 only
- Threads: 1/2 x 28
- Finish: 416 stainless
- Price on October 25, 2026: About $115
Pros
- Cheapest stainless option in our feed
- Knurled thread protector
- Long-running Glock parts maker
Cons
- Gen 1 to 4 only
- Only one store had it
- Won’t fit a Gen 5 or 6
Lone Wolf has made Glock-pattern parts for years, and its LWD threaded barrel is the budget pick for an older gun. It “Fits all Glock® Gen 1-4,” per Lone Wolf’s product page, which lists an MSRP of $124.95. That means it won’t fit a Gen 5 or Gen 6.
In our feed it was $114.95 at Optics Planet on October 25, 2026.
Best For: Gen 3 and Gen 4 Glock 19 owners on a budget.
5. GLOCK Factory Threaded Barrel (G19 Gen 5): Best Factory Option for Gen 5
- Fits: Gen 5, per the listing
- Threads: 1/2 x 28
- Finish: Black
- Price on October 25, 2026: About $190
Pros
- Factory part, factory fit
- Matches the Gen 5 barrel exactly
- Thread protector fitted
Cons
- Most expensive pick here
- One store had it
- Not listed on GLOCK’s site
GLOCK makes threaded barrels, but it doesn’t list them on its own website, so retailers sell them as separate parts for each generation. This one is listed as “Glock 19 Gen5 Threaded Barrel,” and our feed had it at $189.99 from GrabAGun on October 25, 2026.
Buy a factory barrel if you want the gun to stay exactly as GLOCK built it. For less money, the Faxon Match Series and Zaffiri also fit a Gen 5.
Best For: Gen 5 owners who want a factory part.
6. GLOCK Factory Threaded Barrel (G19 Gen 1-4): Best Factory Option for Older Glocks
- Fits: Gen 1 to 4, per the listing
- Threads: 1/2 x 28
- Finish: Matte black
- Price on October 25, 2026: About $210
Pros
- Factory part, factory fit
- Fits Gen 1 to 4
- Thread protector fitted
Cons
- Costs nearly twice Faxon
- One store had it
- Won’t fit a Gen 5 or 6
The older-generation factory threaded barrel is listed by MidwayUSA as “Glock 19 Gen 1-4 Threaded Barrel,” at $209.99 on October 25, 2026.
It’s the priciest way to thread an older Glock 19. Lone Wolf and Faxon both cost less and fit the same guns.
Best For: Gen 3 and Gen 4 owners who want a factory part.
Is a Threaded Barrel Legal?
Under federal law you can buy and own a threaded barrel without any paperwork; the suppressor you might put on it is what’s regulated. But a few states treat a threaded barrel as a restricted feature on some pistols. Lone Wolf, for one, says its threaded barrel “Will NOT be shipped to the following areas: California, Connecticut, Washington, Illinois, and New York.” Check your state’s current rules before you order. Shopping for other Glock 19 upgrades? See our best Glock slides, our best Glock magazines or our Glock 19 parts and accessories guide.
Glock 19 Threaded Barrel FAQ
What is the best threaded barrel for a Glock 19?
For most owners, Faxon. Its Duty Series threaded barrel is listed for Gen 2 to 6, including the G19X and G45, and was $99.00 at Faxon on October 25, 2026. For a Gen 1 to 5 gun, SilencerCo and Zaffiri are also strong picks.
Is there a threaded barrel for the Glock 19 Gen 6?
Yes. Faxon's Duty Series threaded barrel is listed for Gen 2 to 6 and includes a Gen 6 relief cut, though Faxon says wear in that area is possible. It was the only Gen 6 threaded barrel we found.
Do Glock 19 Gen 5 barrels fit a Gen 4?
Not always. Glock barrels are made for specific generations, so match the barrel to the fit list on the maker's own page. Faxon's Match Series, SilencerCo and Zaffiri list both Gen 4 and Gen 5 fit.
What thread pitch is a Glock 19 barrel?
Threaded 9mm Glock 19 barrels use 1/2 x 28 threads, the standard for 9mm. Every pick in this guide is 1/2 x 28.
Does a threaded barrel need a thread protector?
Yes, if you're not running a suppressor or compensator. A protector keeps the threads from getting damaged. Zaffiri includes one in the box.
Are threaded barrels legal?
Under federal law you can buy and own one without paperwork. A few states restrict threaded barrels on some pistols, so check your state's rules before you buy.
Is a factory Glock threaded barrel worth it?
Only if you want a factory part. GLOCK's threaded barrels had the highest starting prices of our picks, at $189.99 for the Gen 5 and $209.99 for the Gen 1 to 4 version. Faxon, Zaffiri and Lone Wolf cost less.
What is the cheapest threaded barrel for a Glock 19?
Faxon's Duty Series at $99.00 from Faxon. In retail stores on October 25, 2026, Faxon's Match Series started at $108.00 and Lone Wolf's Gen 1 to 4 barrel at $114.95.
4,751+ Gun & Ammo Deals
Updated daily from 200+ top retailers. Filter by category, caliber, action type, and price.
Related Guides