GLOCK 34 Gen 4 MOS

Explore parts, discover makers and check what fits your model.

Model & version

GLOCK 34 Gen 4 MOS

GLOCK 34

GLOCK 34 Gen 3

GLOCK 34 Gen 4

GLOCK 34 Gen 5 MOS

Browse parts

121 documented listings99 fit unconfirmedBrowse categories ↓

Only you can see your saved models.

Ask about a part →Showcase your build →

Choose a part to see sources and fitment details.

What the compatibility labels mean

How we knowHow we check compatibility

Lab testedFit checked by Firearm Lab for the recorded setup.
Documented fitmentSupported by manufacturer, partner, or reviewed community evidence.
Interface matchMounting details match, but this exact model and part have not been confirmed to fit together.

Check your exact model and part before ordering. Fitment limits

Model details

Manufacturer

GLOCK

Model & version

Glock 34 · Gen 4 · MOS

Mounting details

Glock MOS, Glock Accessory Rail

Compatibility records

220

Sights

66 listed

View all 66 parts

Lights & rail fitment

Lights & Lasers

54 listed

View all 54 parts

Optics & footprint adapters

Optics

3 listed

View all 3 parts

Optic Plates

40 listed

View all 40 parts

Triggers & internals

Triggers

32 listed

View all 32 parts

Recoil Springs

5 listed

View all 5 parts

Barrels & comps

Barrels

7 listed

View all 7 parts

Compensators

7 listed

View all 7 parts

Also on this pistol

Holsters

10 makers

Concealment Expresschecked 2026-11-01
CrossBreed Holsterschecked 2026-11-01
DeSantis Gunhidechecked 2026-11-01
Galcochecked 2026-11-01
PHLsterchecked 2026-11-01
Safarilandchecked 2026-11-01
Tenicorchecked 2026-11-01
Tier 1 Concealedchecked 2026-11-01
Vedder Holsterschecked 2026-11-01
We The People Holsterschecked 2026-11-01

Check each manufacturer’s options for your model, light and optic.

Holster makers (10)

Grip & magwells

Magwells

3 listed

View all 3 parts

Extended Magazine Releases

2 listed

View all 2 parts

Base Pads

1 listed

Henning Group
PRO Series Base Pad for Glock 9/40
Manufacturer documented

Browse base pads

Suggest a missing part →

Categories with no listings (6)

About the GLOCK 34 Gen 4 MOS

Manufacturer listing ↗ · Checked 2026-08-02

Type: Pistol
Manufacturer: GLOCK
Model & version: Glock 34 · Gen 4 · MOS
Caliber: 9mm
Mounting details: Glock MOS, Glock Accessory Rail
Width: 1.3"
Height: 5.47"
Weight: 23.28 oz
Slide width: 1"
Slide length: 8.15"
Barrel length: 5.31"
Overall length: 8.74"

Other versions of the Glock 34

Compare versions and check the details for your exact model.

GLOCK 34Adds: Glock rear-sight dovetail (standard and Slimline slides). Lacks: Glock MOS.
GLOCK 34 Gen 3Adds: Glock rear-sight dovetail (standard and Slimline slides). Lacks: Glock MOS.
GLOCK 34 Gen 4Adds: Glock rear-sight dovetail (standard and Slimline slides). Lacks: Glock MOS.
GLOCK 34 Gen 5 MOSSame recorded mounting details. Check each part for additional requirements.

Sights

Glock Front Sight, Extra Tall for Optic/Suppressor

CAP Sight Set for Glock Gen 1-4 9mm/.40/.380, Gen 5 10mm/.45

Pistol Sights for Glock MOS 17,19,22,26,31,34,45,47

Sight for Glock MOS, Fixed Co-Witness Black Rear,

Lights & Lasers

EPL Duty (Black)

WILD2 Pistol Mounted Light

PL350G3 OKWv2 Light Package

TCM-10 Compact Weapon-Mounted Light

Optics

C&H Direct Mount Optic for Glock MOS Optics Ready Pistols (G17, G19, G20, G21, G22, G23, G34, G35, G40, G41, G45, G47)

SCS-MOS

PLx HTX-1 Enclosed Pistol Red Dot Sight - ACSS Vulcan Dot Reticle

Optic Plates

Glock MOS ACRO Mount Plate

(MOS5) V4 MIL/LEO Adapter Aimpoint Acro, C&H DUTY, DUTY-XL (STEEL)

NDZ Glock Gen 4-5 & Crossover MOS Optic Cover Plate Aluminum

Precision Optic Plate: Glock MOS (19/17/47) to 509t Footprint

Triggers

Performance Trigger

Trigger Black Shoe Black Safety Gen1 - 4

Factory OEM trigger shoe Upgrade (modified & enhanced)

OP's Glock Performance Trigger

Recoil Springs

DPM "CAPTURED" RECOIL SYSTEM for Gen 4 Glock Models: 17-22-31-34-35-37

Glock 34 / 35 Gen 4 Only Recoil Management System

DPM "Full Adjustable" for Glock MODELS: 17-22-31-34-35-37 Gen 4

Glock 34 Gen 4 Versatility Kit

Barrels

High Polished Mid Line Match Grade Drop-In Barrel (COMPATIBLE with Glock 34 Gen 1-4)

FAXON DUTY SERIES BARREL FOR G34 GEN 2-4 9MM

34 Match 9MM 5.31"OAL (Fits Glock 34 Gen 1-4)

Match V2 Barrel for Glock 34 Gen 1-4

Compensators

417 Compensator Gen 4 Compatible

HC92P V2 COMPENSATOR FOR GLOCK GEN 4-6

34 Match 9MM Barrel with 9/16×32 Thread 4-Port Compensator 5.70″ OAL (Fits Glock 34 Gen 1-4)

PMM Duty Compensator for Glock

Holsters

Magwells

Full Size Carry Magwell For Gen 3

Full Size Carry Magwell For Gen 4

Full Size Competition Lightning Magwell For Gen 4

Extended Magazine Releases

NDZ Glock Gen 4-5 Hybrid Magazine Release

NDZ Glock Gen 4-5 Magazine Release, 9MM .40 cal

Base Pads

PRO Series Base Pad for Glock 9/40

About the GLOCK 34 Gen 4 MOS

Other versions of the Glock 34