GLOCK 40 Gen 4 MOS

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Model & version

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73 documented listings99 fit unconfirmedBrowse categories ↓

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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.

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Model details

Manufacturer

GLOCK

Model & version

Glock 40 · Gen 4 · MOS

Mounting details

Glock MOS, Glock Accessory Rail

Compatibility records

172

Lights & rail fitment

Lights & Lasers

54 listed

Optics & footprint adapters

Optics

3 listed

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Optic Plates

40 listed

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Sights

43 listed

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Triggers & internals

Triggers

25 listed

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Recoil Springs

3 listed

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Barrels & comps

Barrels

2 listed

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Compensators

2 listed

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Also on this pistol

Holsters

1 maker

Vedder Holsterschecked 2026-11-01

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Holster makers (1)

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Categories with no listings (9)

About the GLOCK 40 Gen 4 MOS

Manufacturer listing ↗ · Checked 2026-08-02

Type: Pistol
Manufacturer: GLOCK
Model & version: Glock 40 · Gen 4 · MOS
Caliber: 10mm
Mounting details: Glock MOS, Glock Accessory Rail
Width: 1.34"
Height: 5.47"
Weight: 32.28 oz
Slide width: 1.12"
Slide length: 9.02"
Barrel length: 6.02"
Overall length: 9.49"

Other versions of the Glock 40

Compare versions and check the details for your exact model.

GLOCK 40Adds: Glock rear-sight dovetail (standard and Slimline slides).

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

Sights

Glock Front Sight, Extra Tall for Optic/Suppressor

CAP Sight Set for Glock Gen 1-4 10mm/.45/.357

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

Black Front for Glock RMR/MOS

Triggers

Glock DROP-IN TRIGGERS

Trigger Black Shoe Black Safety Gen1 - 4

Factory OEM trigger shoe Upgrade (modified & enhanced)

BRZ Trigger for Glock

Recoil Springs

DPM "ADJUSTABLE" System for Glock 40 Gen 4

Glock 40 Gen 4 Versatility Kit

DPM "HEAVY CAPTURED" RECOIL SYSTEM for Gen 4 GLOCK MODELS: 20-21-40-41-41(SF)

Barrels

40 Match 10MM 6"OAL (Fits Glock G40 Gen 1-4)

40 Match 10MM with .578×28 Suppressor Threads 6.5"OAL (Fits Glock G40 Gen 1-4)

Compensators

40 Match 10MM Barrel with 5/8×32 Thread 4-Port Compensator (Fits Glock 40 Gen1-4)

40 Match 40S&W Barrel with 5/8×32 Thread 4-Port Compensator (Fits Glock 40 Gen1-4)

Holsters

About the GLOCK 40 Gen 4 MOS

Other versions of the Glock 40