HOLSTERS/

Glock Gen6: Which Models Come Next, and What Fits Now

Three pistols launched in January, the V series replaced most of Gen5, and the parts situation isn't what most people assume

By GPP Editorial Team17 min read

Plan your Glock in the Glock builder: slide, barrel, trigger and sights, each checked for fit. Open the Glock builder →

Glock sells three Gen6 pistols in the US so far, the G17, G19 and G45, and only some of the parts from your Gen5 carry over to them. Here are the four Gen6 parts we'd buy first, with rounded prices from our catalog.

  • Best Gen6 to buy: Glock 19 Gen6 MOS, about $600.
  • Best optic plate: C&H Precision G6-RSH, about $80.
  • Best trigger: CMC 76001-NH drop in, about $125.
  • Best barrel: Radian Afterburner + Ramjet for the G19 and G45 Gen6, about $390.

Which Gen6 parts should you buy first?

Best Gen6 to buy: Glock 19 Gen6 MOS

The G19 is the compact of the three Gen6 pistols, with a shorter grip than the G17 and G45. It's the one we'd pick for a single Glock that has to carry well and still run a red dot at the range.

What we like

  • It's optic ready out of the box, with three polymer plates that Frag Out reports cover RMR, DeltaPoint Pro and C-More footprints.
  • You get the full Gen6 grip, with a palm swell, a thumb rest, a larger beavertail and a flat faced trigger the V series doesn't get.
  • Your Gen3 to Gen5 G19 magazines and your Gen5 G19 holsters carry over, according to Pew Pew Tactical, Gun Digest and American Rifleman.

Watch out for

  • In Gun Digest's long term test the optic twisted on the polymer plate twice with the screws still at torque, so check zero often.
  • Glock's Performance Trigger doesn't fit it, and neither does a Gen5 barrel or a Gen5 recoil spring assembly.
  • A commercial V 19 cost about $85 less in our catalog, and that's real money if you'll never mount a red dot.

Best optic plate: C&H Precision G6-RSH

The factory polymer shims cover the common footprints, but Gun Digest's test optic moved on one, and you may want metal under a dot you carry every day. C&H cuts its G6 plates for the Gen6 slide specifically, with versions for RMR and SRO style dots, Holosun's EPS and K series and the Aimpoint ACRO.

What we like

  • The listing names Gen6 and the RMR, SRO and Holosun footprints right in the title, so you know which cut and which dot it fits.
  • It's black anodized metal, where the shim Glock puts in the box is a thin polymer plate.
  • The sister plates for the Holosun EPS and the 407K or 507K sell at the same price of about $80.

Watch out for

  • C&H says its G6 plates won't fit the old Gen5 optic cut, so the plate stays with the Gen6 if you ever go back to a Gen5 MOS.
  • Match it to your sight's footprint, because an EPS or an ACRO needs the C&H plate made for that footprint instead.

Best trigger: CMC 76001-NH drop in

Gun Digest found much of the Gen3 to Gen5 aftermarket won't work with a Gen6, so the first thing to read on any trigger listing is the generation. CMC lists this drop in for both current Gen5 and Gen6 models, and that makes it the rare upgrade that works on both.

What we like

  • CMC's own listing says it's compatible with current Gen5 and Gen6 models, so you aren't guessing from a retailer title.
  • The listing in our catalog names the G17, G19, G45 and G49, which covers every Gen6 pistol reported so far.
  • CMC sells it as a drop in, and it runs about $125 in our catalog.

Watch out for

  • It's sold without a trigger housing, as both CMC's page and the listing title say.
  • Glock's own Performance Trigger isn't an alternative on a Gen6, according to American Rifleman and Glock's compatibility list.
  • Timney's Alpha comes in separate Gen5 and Gen6 versions, so check which one you're buying if you'd rather run a Timney.

Best barrel: Radian Afterburner + Ramjet for the G19 and G45 Gen6

Gen6 barrels don't swap with earlier generations, and Radian was the first maker in our catalog with a Gen6 barrel and compensator. The G19 and G45 share one version, and the G17 Gen6 gets its own.

What we like

  • Radian makes it for Gen6, and it ships as a matched barrel and compensator system so you don't pair two parts yourself.
  • One version covers both the G19 Gen6 and the G45 Gen6, since Glock lists the same slide and barrel length for both.
  • It costs about $390 for the barrel and the compensator together.

Watch out for

  • Safariland's writeup says Gen5 barrel geometry won't cross over, so it won't move to a Gen5 or a V pistol.
  • The G17 Gen6 needs its own version at about $410, and our catalog files that one as a slide completion kit even though it's a barrel and comp.

What fits a Gen6, a V and a Gen5?

Most new Glocks today are a V or a Gen6, and the parts answer changes with each one. Pick your gun in the chart below and read down, and where nobody has confirmed a fit either way, the chart says so.

What fits a Gen6, a V and a Gen5

From Glock's pages, maker listings (C&H, Forward Controls Design, Radian, Timney, CMC, Shield Arms, Safariland) and coverage in Gun Digest, American Rifleman, Frag Out, The Truth About Guns, all4shooters, Pew Pew Tactical and Soldier Systems, checked September 27, 2026.

I have a

8 of 16 fit the Gen6 Glock 17, 19 or 45 outright, and 2 more fit with a catch.

Magazines
  • Glock 9mm magazine from an earlier generation
    Fits. Pew Pew Tactical's G19 Gen6 review: same magazines, compatible with earlier generations.
Holsters
  • Holster cut for a Gen5
    Fits. Gun Digest, American Rifleman, TTAG and Frag Out say it fits. Glock lists the 19 and 45 0.01 in wider. Try a tight kydex shell before you carry in it.
  • Safariland holster labeled Gen6
    Fits.
Barrel, recoil spring and slide
  • Gen5 barrel
    Won't fit. all4shooters and Frag Out say the Gen6 barrel changed and won't swap with earlier generations.
  • Gen6 barrel, like Radian's Afterburner + Ramjet
    Fits.
  • Gen5 recoil spring assembly
    Won't fit. Frag Out: Gen6 went back to the single captive spring Glock used before Gen4 and Gen5.
  • Complete Gen5 slide
    Unconfirmed. The Gen6 frame has a new notch for a new slide back plate. Nobody lists a Gen5 slide for it.
Triggers
  • Aftermarket Gen5 trigger
    Fits, with a catch. Only if the listing names Gen6. CMC's 76001-NH names Gen5 and Gen6. Timney sells separate Gen5 and Gen6 Alphas.
  • Glock Performance Trigger
    Won't fit. American Rifleman's Gen6 launch report says the Performance Trigger isn't compatible with Gen6, and Glock's compatibility list names no Gen6 model.
  • Timney Alpha for Gen6
    Fits.
Optics
  • Gen5 MOS adapter plate
    Won't fit. TTAG: Gen6 cuts the slide lower and uses a polymer plate in place of the metal MOS plate.
  • Gen6 plate (factory shim, C&H G6, FCD)
    Fits. Fits. Gun Digest's May 2026 test lost zero twice on the factory polymer plate with no visible sign, so check zero often.
  • RMR or DeltaPoint Pro footprint red dot
    Fits. Frag Out says the three factory plates cover RMR, DeltaPoint Pro and C-More. Glock doesn't name them.
  • Aimpoint ACRO or Holosun EPS
    Fits, with a catch. Needs an aftermarket Gen6 plate, or buy a factory COA or EPS package.
Sights and grip
  • Gen5 factory sights
    Fits. Gun Digest's May 2026 review lists iron sights among the parts Gen5 and Gen6 share. Glock lists the same sight radius as the Gen5 MOS for all three sight types.
  • Gen5 magwell
    Unconfirmed. Shield Arms sells a separate Gen6 magwell. Nobody says whether the Gen5 one fits.
FitsFits, with a catchWon't fitUnconfirmed
What fits a Gen6, a V and a Gen5
PartGen6 Glock 17, 19 or 45V series Glock 17, 19 or 45Gen5 Glock 17, 19 or 45
Magazines: Glock 9mm magazine from an earlier generationFits. Pew Pew Tactical's G19 Gen6 review: same magazines, compatible with earlier generations.Fits. Glock's V spec pages list the same 17 and 15 round standard magazines as the Gen5.Fits
Holsters: Holster cut for a Gen5Fits. Gun Digest, American Rifleman, TTAG and Frag Out say it fits. Glock lists the 19 and 45 0.01 in wider. Try a tight kydex shell before you carry in it.Fits. Glock's V spec pages list the Gen5 length, height and width. Only the weight differs.Fits
Holsters: Safariland holster labeled Gen6FitsUnconfirmed. Safariland sells these as Gen 6 G17, G19 and G45 fits and names no other generation.Unconfirmed. Safariland sells these as Gen 6 G17, G19 and G45 fits and names no other generation.
Barrel, recoil spring and slide: Gen5 barrelDoes not fit. all4shooters and Frag Out say the Gen6 barrel changed and won't swap with earlier generations.Unconfirmed. No maker we found says either way.Fits
Barrel, recoil spring and slide: Gen6 barrel, like Radian's Afterburner + RamjetFitsDoes not fit. Radian sells it for Gen6 only. Safariland's writeup says Gen5 barrel geometry won't cross over.Does not fit. Radian sells it for Gen6 only. Safariland's writeup says Gen5 barrel geometry won't cross over.
Barrel, recoil spring and slide: Gen5 recoil spring assemblyDoes not fit. Frag Out: Gen6 went back to the single captive spring Glock used before Gen4 and Gen5.Unconfirmed. No maker we found says either way.Fits
Barrel, recoil spring and slide: Complete Gen5 slideUnconfirmed. The Gen6 frame has a new notch for a new slide back plate. Nobody lists a Gen5 slide for it.Unconfirmed. Distributors told Soldier Systems the V changes are internal slide and trigger improvements. Check the maker's listing.Fits
Triggers: Aftermarket Gen5 triggerFits, with a catch. Only if the listing names Gen6. CMC's 76001-NH names Gen5 and Gen6. Timney sells separate Gen5 and Gen6 Alphas.Unconfirmed. Distributors told Soldier Systems the V got internal trigger changes. Buy one whose listing names V models.Fits
Triggers: Glock Performance TriggerDoes not fit. American Rifleman's Gen6 launch report says the Performance Trigger isn't compatible with Gen6, and Glock's compatibility list names no Gen6 model.Does not fit. Distributors told Soldier Systems in October 2025 that current Performance Triggers won't function in V pistols.Fits
Triggers: Timney Alpha for Gen6FitsDoes not fit. Timney's listing names Gen6 only.Does not fit. Timney sells a separate Gen5 Alpha.
Optics: Gen5 MOS adapter plateDoes not fit. TTAG: Gen6 cuts the slide lower and uses a polymer plate in place of the metal MOS plate.Does not fit. Glock sells the commercial V 17, 19 and 45 without MOS.Fits, with a catch. MOS models only.
Optics: Gen6 plate (factory shim, C&H G6, FCD)Fits. Fits. Gun Digest's May 2026 test lost zero twice on the factory polymer plate with no visible sign, so check zero often.Does not fit. The commercial V 17, 19 and 45 have no optic cut.Does not fit. C&H says its G6 plate doesn't fit Gen5 optic cuts.
Optics: RMR or DeltaPoint Pro footprint red dotFits. Frag Out says the three factory plates cover RMR, DeltaPoint Pro and C-More. Glock doesn't name them.Does not fit. No optic cut on the commercial 17, 19 and 45.Fits, with a catch. MOS models, with the right plate.
Optics: Aimpoint ACRO or Holosun EPSFits, with a catch. Needs an aftermarket Gen6 plate, or buy a factory COA or EPS package.Does not fit. No optic cut on the commercial 17, 19 and 45.Fits, with a catch. MOS models, with a plate for that footprint.
Sights and grip: Gen5 factory sightsFits. Gun Digest's May 2026 review lists iron sights among the parts Gen5 and Gen6 share. Glock lists the same sight radius as the Gen5 MOS for all three sight types.FitsFits
Sights and grip: Gen5 magwellUnconfirmed. Shield Arms sells a separate Gen6 magwell. Nobody says whether the Gen5 one fits.Fits. Glock lists the Gen5 outside dimensions, and distributors told Soldier Systems the V changes are internal.Fits

Which Glock models are Gen6 so far?

Glock announced its sixth generation in December 2025 and shipped the G17, G19 and G45 to dealers on January 20, 2026, all in 9mm. Each got a flat faced trigger, a palm swell, grip texture that covers a new thumb rest, an enlarged beavertail and a new optic ready system.

Those three make up the whole US list, and Glock's US site has spec pages for them and nothing else. American Rifleman and Gun Digest both reported a G49 Gen6 for international markets only, but Glock's US release doesn't name it.

The rest of the lineup moved off Gen5 too. Distributors told Soldier Systems in October 2025 that most Gen5 models would stop shipping on November 30, with V series models following in December.

Glock's US catalog now lists no Gen5 model, so a new Glock is a V, a Gen6 or a slimline. American Rifleman says none of Glock's slimline pistols is affected by the V changes.

How different is a Gen6 from a Gen5?

Glock publishes a spec page for every Gen6 model, and when you lay a Gen6 over a Gen5 the outline barely moves. Overall length, slide length, height and barrel length match on all three, while the 19 and 45 Gen6 are listed 0.01 in wider.

Trigger reach is 0.08 in shorter on all three, 2.68 in against 2.76 in. Each Gen6 also weighs 0.98 to 1.38 oz less with an empty magazine, and in ounces, Gen6 against Gen5, the pairs run G17 23.99 against 24.97, G19 22.58 against 23.63, G45 23.10 against 24.48.

Glock 19 Gen6 vs Gen5, to scale

Side profiles from Glock's spec pages, read September 27, 2026. Same length and height, so the outlines sit on top of each other. Weights with an empty magazine.

Glock 19 Gen6 vs
7.28 in7.28 in7.95 in7.95 in7.44 in7.44 inGLOCK

One square is one inch. Aligned at the slide rear and sight top, the way the guns sit in your hand.

Glock 19 Gen6
22.58 oz
7.28 x 5.04 x 1.35 in
6.85 in slide · 4.02 in barrel · 15 rd
Glock 19 Gen5
23.63 oz
7.28 x 5.04 x 1.34 in
6.85 in slide · 4.02 in barrel · 15 rd
vs Glock 19 Gen6: same slide, 0.01 in narrower, 1.05 oz heavier
Glock 19 Gen6 vs Gen5, to scale
PistolLength (in)Slide (in)Height (in)Width (in)Weight (oz)Barrel (in)
Glock 19 Gen67.286.855.041.3522.584.02
Glock 19 Gen57.286.855.041.3423.634.02
Glock 17 Gen67.957.325.471.3423.994.49
Glock 17 Gen57.957.325.471.3424.974.49
Glock 45 Gen67.446.855.471.3523.14.02
Glock 45 Gen57.446.855.471.3424.484.02

The two outlines sit on top of each other, and that's why a holster cut for a Gen5 takes a Gen6.

Length, height, slide, barrel
Same
Shorter trigger reach, all three
0.08 in
Wider, 19 and 45 only
+0.01 in
Lighter, empty magazine
1.0 to 1.4 oz

Gen6 against Gen5, from Glock's spec pages, September 27, 2026

What Glock changed on paper - Gen6 against Gen5, from Glock's spec pages, September 27, 2026
MetricValue
Length, height, slide, barrelSame
Shorter trigger reach, all three0.08 in
Wider, 19 and 45 only+0.01 in
Lighter, empty magazine1.0 to 1.4 oz

Which Glock models will get Gen6 next?

Glock hasn't announced a Gen6 version of any model beyond the 17, 19, 45 and the overseas 49. That includes the 10mm G20, which Glock sells today as the G20 V MOS.

Glock has said nothing firm, so what follows is our own reasoning from tooling and shared frames rather than reporting from a press release.

The easiest conversions are the pistols that already share the Gen6 frame geometry. American Rifleman describes the G47 as the G45 frame with a full size slide, so we think a Gen6 G47 is the shortest step Glock could take.

The hardest are the ones furthest from the launch models. The slimline G43, G43X and G48 sit on a different frame entirely, and subcompacts like the G26 have less grip to carry the ergonomic changes Gen6 is selling.

Factory optic packages have already arrived. Retailers sell Gen6 pistols under Glock part numbers with an Aimpoint COA or a Holosun EPS installed, both enclosed emitters, and an EOTech EFLX package carries a Glock part number too.

At least one retailer sells its own Vortex Venom bundle on a Gen6 as well. Glock's US site lists none of these packages. You'll find them through retailers only.

Glock launched Gen6 at SHOT Show in January 2026. The next show opens January 19, 2027 in Las Vegas, and it's the obvious place for Glock to announce the next models.

Gen6 so far, and the next date on the calendar

Glock announcements, launch coverage and our own catalog. Glock has named no model beyond these.

  1. Oct 21, 2025Community
    Gen5 discontinuation reported

    Distributors told Soldier Systems most Gen5 models stop shipping November 30, with V models following in December

  2. Nov 30, 2025Community
    Reported Gen5 shipping stop

    The date distributors gave. American Rifleman says no slimline is affected by the V changes

  3. Dec 6, 2025First party
    Gen6 announced

    The 17, 19 and 45 in the US. American Rifleman reports a 49 for international markets

  4. Jan 20, 2026First party
    Gen6 reaches dealers

    Launched at SHOT Show 2026. TTAG put MSRP around $745

  5. May 11, 2026Community
    Gun Digest's long term Gen6 review

    The optic shifted twice on the polymer plate with the screws still at torque

  6. May 29, 2026Public record
    First Gen6 barrel and comp in our catalog

    Radian's Afterburner + Ramjet barrel and compensator system, for the G17. The G19 and G45 version followed September 18

  7. Jan 19, 2027First party
    SHOT Show 2027 opens

    January 19 to 22, Las Vegas

Gen6 so far, and the next date on the calendar
DateEventSource
Oct 21, 2025Gen5 discontinuation reportedcommunity
Nov 30, 2025Reported Gen5 shipping stopcommunity
Dec 6, 2025Gen6 announcedofficial
Jan 20, 2026Gen6 reaches dealersofficial
May 11, 2026Gun Digest's long term Gen6 reviewcommunity
May 29, 2026First Gen6 barrel and comp in our catalogrecord
Jan 19, 2027SHOT Show 2027 opensofficial

How many Gen6 parts can you buy yet?

The Glock aftermarket is one of the largest in the gun world, and almost none of it has been cut for Gen6 yet. Our own catalog shows how thin the Gen6 shelf still is.

Products in our Glock categories
32,962
Listings that name Gen6
100
Gen6 parts, not pistols
47
Glock holsters in catalog
13,946

Measured against our own catalog, September 27, 2026

How Thin the Gen6 Parts Shelf Actually Is - Measured against our own catalog, September 27, 2026
MetricValue
Products in our Glock categories32,962
Listings that name Gen6100
Gen6 parts, not pistols47
Glock holsters in catalog13,946

In late September our catalog held nearly 33,000 products in its Glock categories, and only about a hundred listings named Gen6 at all. Strip out the complete pistols and fewer than fifty parts remain.

Most of those parts are holsters and optic plates, plus Radian's barrel and compensator combos, three triggers and two Shield Arms magwells. The same catalog carries nearly 14,000 Glock holsters, so for most slots on a Gen6 your choice is a Gen5 part that fits or nothing at all.

Which Gen5 parts fit a Gen6?

Magazines carry over

The Gen3, Gen4 and Gen5 magazines you already own work in the matching Gen6 pistol. Pew Pew Tactical's G19 Gen6 review found the magazines the same as earlier generations, and they locked and dropped cleanly in testing, so you have nothing to rebuy.

Holsters carry over

Glock lists the same length and height for Gen6 as for Gen5. The 17 is the same width, and the 19 and 45 are 0.01 in wider, 1.35 in against 1.34 in.

Gun Digest, American Rifleman, The Truth About Guns and Frag Out all say Gen5 holsters fit, and Pew Pew ran its test G19 Gen6 in an Alien Gear Rapid Force without trouble.

None of those reviews tested a light bearing duty rig, so check the maker's fit list before you buy one. Try a tight kydex shell at home before you carry in it.

Barrels, recoil springs and slides don't

Gen6 barrels don't swap with earlier generations. all4shooters cites new chamfering and a different geometry, and Frag Out reports a slightly changed barrel and a reshaped locking block.

A threaded or match barrel is often the first part a new owner wants, and listings don't always make the generation obvious. Radian's Afterburner + Ramjet, our barrel pick above, also comes in a separate version for the G17 Gen6.

The recoil spring changed as well. Frag Out reports that Gen6 went back to the single captive spring Glock used before Gen4 and Gen5, so if you replace yours, buy a recoil assembly listed for Gen6.

Slides are still an open question. The Truth About Guns reports a new notch in the Gen6 frame that mates with a new slide back plate, and no maker we've found lists a Gen5 slide for a Gen6 frame. Treat it as unconfirmed until you see one listed.

Triggers need a listing that names Gen6

Pew Pew describes the Gen6 trigger as the Gen5 design moved further back in the housing, with a flat shoe. Timney sells separate Alphas for Gen5 and Gen6, while CMC lists its 76001-NH drop in for both.

Glock's own Performance Trigger doesn't fit a Gen6. American Rifleman's launch report says it isn't compatible, and Glock's compatibility list names Gen4 and Gen5 pistols but no Gen6 or V model.

Distributors also told Soldier Systems in October 2025 that current Performance Triggers won't function in V pistols, so the V is no workaround either.

How did Gen6 optic mounting change?

Gen5 MOS pistols used a metal adapter plate between the optic and the slide, and Frag Out's complaint was that a long optic screw could reach the extractor. The Gen6 system moves the extractor clear of the screw holes.

The Truth About Guns reports that Gen6 cuts the slide lower, so the optic screws straight into the slide with a thin polymer plate between them as a shim. Three plates come in the box, and while Glock doesn't name the footprints, Frag Out reports RMR, DeltaPoint Pro and C-More.

Lower hasn't proven sturdier yet. Gun Digest's David Lane ran a Gen6 with a dot on the polymer plate, and after about 1,000 rounds the optic had twisted while the screws stayed at torque and the witness marks never moved.

He remounted it, and a few hundred rounds later it shifted again. That's one gun in one review, but you can't see this failure, so check zero often and don't trust a paint pen alone.

The plates you own for a Gen5 MOS won't carry over, because C&H says its G6 plates don't fit Gen5 optic cuts. If you run a sight outside the included footprints, like the Aimpoint ACRO or Holosun EPS, you'll need an aftermarket Gen6 plate.

Match the plate to your sight's footprint. Forward Controls Design's stainless steel Gen6 RMR plate, for example, is made for Trijicon's RMR, RMR HD, RCR and SRO, and it takes Primary Arms' HTX-1 with that sight's own adapter.

Should you buy a Gen6 or a V?

Your choice today is Gen6 or V, since Glock's US catalog lists no Gen5 model. The V costs less, and the cheapest in stock commercial V 19 in our catalog was about $510, against about $600 for the cheapest Gen6 19.

The 17s sit a little closer together, but the V still comes in cheaper. Those prices leave out Blue Label and qualified purchaser listings, which Primary Arms and others price for officers, first responders and military buyers.

In late September a Blue Label Gen6 19 offer sat at about $515, and a Blue Label V 19 was listed at about $425.

Gen6 gets you the optic ready slide, the better grip and the factory enclosed dot option. The commercial V 17, 19 and 45 have no optic cut at all, so putting a red dot on a V means buying a new slide.

For a carry gun with a red dot, Gen6 is the easier answer, because the cut comes from the factory, sits lower and keeps the screws off the extractor. For a gun you'll run on iron sights, the V saves you about $85, and three questions settle it for most people.

Gen6 or V?

Three questions. Prices are rounded, the cheapest in stock commercial offers in our catalog in late September and early October 2026, leaving out Blue Label and qualified purchaser listings.

  1. 1. Will you run a red dot?
  2. 2. What's your budget for the pistol?
  3. 3. Do you want the palm swell, beavertail and thumb rest?

Answer any question and the pick updates as you go.

Gen6 or V?
QuestionAnswerPoints toward
Will you run a red dot?YesGen6. The commercial V 17, 19 and 45 have no optic cut. A Gen6 takes a dot out of the box.
Will you run a red dot?Maybe laterGen6. Adding a dot to a V later means buying a new slide.
Will you run a red dot?No, iron sightsV series. Without a dot you don't need the optic ready slide you'd pay for on a Gen6.
What's your budget for the pistol?Under $550V series. A commercial V 19 started at about $510. The cheapest commercial Gen6 19 was about $600.
What's your budget for the pistol?$550 to $600V series. Among commercial offers, the cheapest Gen6 19 sat right at the top of this range.
What's your budget for the pistol?$600 or moreGen6
Do you want the palm swell, beavertail and thumb rest?YesGen6. Those grip changes are Gen6 only.
Do you want the palm swell, beavertail and thumb rest?Don't careV series. The V keeps the Gen5 grip, and costs less.
ResultGen6Optic ready and the better grip. Buy Gen6 parts for it, and check every listing.
ResultV seriesThe cheaper Glock, with Gen5 outside dimensions. A red dot means a new slide.

How we pick

We checked every fit against Glock's spec pages, the maker's own listing and launch coverage from Gun Digest, American Rifleman, Frag Out, The Truth About Guns, all4shooters, Pew Pew Tactical and Soldier Systems. A pick has to name Gen6 in its listing, and every price is the cheapest in stock offer in our catalog, rounded.

One email when we change the picks. Nothing else.

Filed underGlock/Holsters/Triggers/Optics/Explainer

FAQ

Frequently asked questions

Which Glock models are available in Gen6?

The G17, G19 and G45 in 9mm, which reached US dealers on January 20, 2026 after a December 6, 2025 announcement. They're the only Gen6 pages on Glock's US site as of September 27, 2026. American Rifleman and Gun Digest reported a G49 Gen6 for international markets only. Retailers sell Gen6 packages with a factory installed optic under Glock part numbers. Most of the rest of Glock's US catalog is now V series models. Distributors told Soldier Systems the V would replace most Gen5 models from December 2025, and American Rifleman says none of Glock's slimline pistols is affected by the V changes.

What Glock models are expected in Gen6 next?

Glock hasn't committed publicly. Reasoning from tooling, the G47 is the closest candidate because American Rifleman describes it as the G45 frame with a full size slide. The slimline family sits on a different frame architecture and the subcompacts have less room for the Gen6 ergonomic features, so both are likely to come later. SHOT Show 2027, January 19 to 22, is the next obvious place for an announcement.

Is there a Glock 20 Gen6?

No. The Glock 20 is sold today as the G20 V MOS, part of the V series. Distributors told Soldier Systems the V would replace most Gen5 models from December 2025. As of September 27, 2026 Glock's US site lists Gen6 pages for the G17, G19 and G45 only.

Do Gen5 Glock magazines work in a Gen6?

Yes. Gen3, Gen4 and Gen5 magazines function in the corresponding Gen6 pistol, so there's nothing to replace. Pew Pew Tactical's G19 Gen6 review found the magazines the same as earlier generations, and they locked and dropped cleanly.

Will my Gen5 holster fit a Gen6 Glock?

Generally yes. Glock lists the same length and height, the 17 is the same width, and the 19 and 45 are only 0.01 in wider. Gun Digest, American Rifleman, The Truth About Guns and Frag Out all say Gen5 holsters fit. None of them tested a light bearing duty rig, so check the maker's fit list for one. Test a tightly molded kydex shell before trusting it for carry.

Do Gen5 barrels fit a Gen6 Glock slide?

No. Gen6 barrels have new chamfering and geometry and don't swap with earlier generations. The recoil spring changed too: Frag Out reports Gen6 went back to the single captive spring Glock used before Gen4 and Gen5. Gen6 specific barrels exist now, such as Radian's Afterburner + Ramjet barrel and compensator combo, sold for the G17 Gen6 and for the G19 and G45 Gen6. Always buy a barrel with the generation stated in the listing.

Do aftermarket triggers fit a Gen6 Glock?

Only ones whose listing names Gen6. Timney sells a separate Alpha for Gen6, and CMC lists its 76001-NH drop in for both Gen5 and Gen6. Gun Digest found much of the Gen3 to Gen5 aftermarket won't work with Gen6. Glock's own Performance Trigger doesn't fit: American Rifleman's launch report says it isn't compatible with Gen6, and Glock's compatibility list names no Gen6 model. Treat any trigger sold as universal without a stated generation as unverified.

What changed about Gen6 optic mounting?

Gen5 MOS pistols used a metal adapter plate, and a long optic screw could reach the extractor. The Truth About Guns reports that Gen6 cuts the slide lower. The optic screws straight into the slide, and a thin polymer plate sits between them as a shim. Three plates come in the box. Glock doesn't name the footprints, but Frag Out reports RMR, DeltaPoint Pro and C-More. Gen5 MOS plates don't fit the Gen6 cut, and sights outside those footprints, like the Aimpoint ACRO and Holosun EPS, need an aftermarket Gen6 plate. The new system isn't proven better yet: Gun Digest's May 2026 long term test lost zero twice on the polymer plate with no visible sign, so check zero often.

Written by

GPP Editorial TeamAR Build Specialists

GunPartPicker guides are powered by data from real builds. What builders actually select tells the story.

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