GLOCK 20 Gen 5

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128 documented listings67 fit unconfirmedBrowse categories ↓

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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.

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Model details

Manufacturer

GLOCK

Model & version

20 · Gen 5

Mounting details

Glock Accessory Rail, Glock rear-sight dovetail (standard and Slimline slides)

Compatibility records

195

Sights

90 listed

Lights & rail fitment

Lights & Lasers

57 listed

View all 57 parts

Triggers & internals

Triggers

25 listed

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Recoil Springs

1 listed

DPM Systems
DPM Adjustable Recoil System for Glock 20-21 Gen 5 & 20 - 21 V MOS
Manufacturer documented

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Barrels & comps

Barrels

12 listed

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Compensators

2 listed

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Optics & footprint adapters

Optic Plates

6 listed

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Also on this pistol

Holsters

5 makers

Concealment Expresschecked 2026-11-01
Galcochecked 2026-11-01
PHLsterchecked 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 (5)

Slides

1 listed

Advantage Arms
22LR Conversion Kit — LE20-21
Manufacturer documented

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Grip & magwells

Magazines

1 listed

Advantage Arms
20/21 Magazine
Manufacturer documented

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Categories with no listings (8)

About the GLOCK 20 Gen 5

Non-MOS Glock 20 Gen 5. Catalogue already has Gen 5 MOS; parts that name Gen 5 without MOS must not alias onto the optic-cut row.

Type: Pistol
Manufacturer: GLOCK
Model & version: 20 · Gen 5
Caliber: 10mm Auto
Mounting details: Glock Accessory Rail, Glock rear-sight dovetail (standard and Slimline slides)
Width: 1.38"
Height: 5.51"
Weight: 26.63 oz
Slide width: 1.12"
Slide length: 7.52"
Barrel length: 4.61"
Overall length: 8.07"

Sights

Glock Front Sight, Extra Tall for Optic/Suppressor

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

Sight for Glock, Black Front,

Polymer Adjustable Sights

Lights & Lasers

EPL Duty (Black)

WILD2 Pistol Mounted Light

PL350G3 OKWv2 Light Package

TCM-10 Compact Weapon-Mounted Light

Triggers

Glock DROP-IN TRIGGERS

Trigger Black Shoe Black Safety Gen5

Factory OEM trigger shoe Upgrade (modified & enhanced)

BRZ Trigger for Glock

Recoil Springs

DPM Adjustable Recoil System for Glock 20-21 Gen 5 & 20 - 21 V MOS

Barrels

Gen5 20 Match 10MM 4.6"OAL (Fits Glock G20 Gen5)

Gen5 20 Match 10MM 6"OAL (Fits Glock G20 Gen5)

Gen5 20 Match 10MM with .578×28 Suppressor Threads 5.2" OAL (Fits Glock G20 Gen5 )

Gen5 20 Match 10MM with 9/16×24 Suppressor Threads 5.2"OAL (Fits Glock G20 Gen5)

Compensators

Gen5 20 Match 10MM Barrel with 5/8×32 Thread 4-Port Compensator (Fits Glock 20 Gen5)

Gen5 20 Match 40S&W Barrel with 5/8×32 Thread 4-Port Compensator (Fits Glock 20 Gen5)

Optic Plates

ACRO Rear Sight Adapter Plate for GLOCK

Fits GLOCK Rear Dovetail Adapter Holosun 407K / 507K / C&H EDC / EDC Enclosed / Olight Osight S STEEL

Red Dot Mount – MRA for Glock

Fits GLOCK Rear Dovetail Adapter Holosun 509T STEEL

Holsters

Slides

22LR Conversion Kit — LE20-21

Magazines

20/21 Magazine

About the GLOCK 20 Gen 5