glock barrel lengths

Glock Barrel Lengths

Glock pistols are some of the most popular guns on the market, coming in a variety of calibers and barrel lengths.

If you’re anything like me, you like to compare the different sizes of pistols you might shoot or carry. That’s why I wanted to create a quick reference for the different Glock barrel lengths. 

Glock Barrel Lengths

showing four different glock barrel length pistols, the g43, g48, g19x, and g20

There are over 30 different models of Glock pistols, all with numerical names. It can get a little confusing. Here’s a chart of all the Glock models and their barrel lengths, sorted by caliber.

If you’re interested in the ammo capacities of each Glock pistol, be sure to check out our Glock Ammo Capacities guide.

Glock ModelCaliberBarrel LengthSize
G44.22LR4.02"Compact
G42.380 Auto3.25"Subcompact
G439mm3.41"Subcompact
G43X9mm3.41"Subcompact
G269mm3.43"Subcompact
G199mm4.02"Compact
G19X9mm4.02"Compact
G459mm4.02"Compact
G489mm4.17"Compact
G179mm4.49"Standard
G479mm4.49"Standard
G349mm5.31"Competition
G17L9mm6.02"Long Slide
G33.357 Sig3.43"Subcompact
G32.357 Sig4.02"Compact
G31.357 Sig4.49"Standard
G27.40 S&W3.43"Subcompact
G23.40 S&W4.02"Compact
G22.40 S&W4.49"Standard
G35.40 S&W5.31"Competition
G24.40 S&W6.02"Long Slide
G30.45 Auto3.78"Subcompact
G21.45 Auto4.61"Standard
G41.45 Auto5.31"Competition
G39.45 G.A.P.3.43"Subcompact
G38.45 G.A.P.4.02"Compact
G37.45 G.A.P.4.49"Standard
G2910mm3.78"Subcompact
G2010mm4.61"Standard
G4010mm6.02"Long Slide

9mm Glock Barrel Lengths

the glock 43 9mm pistol

Glock makes 11 different pistols that shoot 9mm ammo. The pistols with the smallest barrel length are the G43 and G43X with a 3.41” barrel. The pistol with the longest barrel is the G17L with a barrel length at a whopping 6.02”.

Glock ModelCaliberBarrel LengthSize
G439mm3.41"Subcompact
G43X9mm3.41"Subcompact
G269mm3.43"Subcompact
G199mm4.02"Compact
G19X9mm4.02"Compact
G459mm4.02"Compact
G489mm4.17"Compact
G179mm4.49"Standard
G479mm4.49"Standard
G349mm5.31"Competition
G17L9mm6.02"Long Slide

Glock 19 and 19X Barrel Length

The Glock 19 and Glock 19X have a barrel length of 4.02″.

Glock 17 Barrel Length

The Glock 17 has a barrel length of 4.49″.

Glock 17L Barrel Length

The Glock 17L has a barrel length of 6.02″.

Glock 43 and 43X Barrel Length

The Glock 43 and Glock 43X have a barrel length of 3.41″.

Glock 34 Barrel Length

The Glock 34 has a barrel length of 5.31″.

Glock 26 Barrel Length (threaded barrel?)

The Glock 26 barrel length is 3.43″.

Glock 48 Barrel Length

The Glock 48 has a barrel length of 4.17″.

Glock 45 Barrel Length

The Glock 45 has a barrel length of 4.02″.

Glock 47 Barrel Length

The Glock 47’s barrel length is 4.49″.

.40 S&W Glock Barrel Lengths

black hills 40 S&W ammo with three rounds

Glock ModelCaliberBarrel LengthSize
G27.40 S&W3.43"Subcompact
G23.40 S&W4.02"Compact
G22.40 S&W4.49"Standard
G35.40 S&W5.31"Competition
G24.40 S&W6.02"Long Slide

Glock makes five different pistols that shoot .40 S&W ammo with barrel lengths ranging from 3.43″ to 6.02″.

Glock 22 Barrel Length

The Glock 22 has a barrel length of 4.49″.

Glock 23 Barrel Length

The Glock 23 has a barrel length of 4.02″.

Glock 27 Barrel Length

The Glock 27’s barrel length is 3.43″.

10mm Glock Barrel Lengths

the glock 20 10mm pistol with a 4.61" barrel length

Glock ModelCaliberBarrel LengthSize
G2910mm3.78"Subcompact
G2010mm4.61"Standard
G4010mm6.02"Long Slide

Glock’s three pistols chambered in 10mm ammo range from 3.78″ to 6.02″.

Glock 20 Barrel Length

The Glock 20 has a barrel length of 4.61″.

Glock 29 Barrel Length

The Glock 29 subcompact 10mm pistol has a barrel length of 3.78″.

Glock 40 Barrel Length

The Glock 40 has a barrel length of 6.02″.

.45 ACP Barrel Lengths

a glock 21 10mm pistol

Glock ModelCaliberBarrel LengthSize
G30.45 Auto3.78"Subcompact
G21.45 Auto4.61"Standard
G41.45 Auto5.31"Competition

While many think of the classic 1911 when we talk about the .45 ACP, Glock also makes three different pistols chambered in the caliber that won three World Wars.

Glock 30 Barrel Length

The Glock 30 is the smallest .45 ACP that Glock makes with a barrel length of 3.78″.

Glock 21 Barrel Length

The Glock 21’s barrel length is 4.61″.

Glock 41 Barrel Length

The Glock 41 has a barrel length of 5.31″.

Glock 42 Barrel Length

Glock’s only pistol chambered in .380 ACP, the Glock 42, has a barrel length of 3.25″.

Glock 44 Barrel Length

three rounds of .22lr ammo

The lone Glock pistol chambered in .22LR is the Glock 44 with a barrel length of 4.02″.

.45 G.A.P. Barrel Lengths

a box and three rounds of sellier & bellot 45 gap ammo

Glock ModelCaliberBarrel LengthSize
G39.45 G.A.P.3.43"Subcompact
G38.45 G.A.P.4.02"Compact
G37.45 G.A.P.4.49"Standard

Last but not least, Glock produces three pistols in their own .45 G.A.P. caliber with barrel lengths ranging from 3.43″ to 4.49″.

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