10-8 Performance
GLOCK 20 Gen 2
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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.
Check your exact model and part before ordering. Fitment limits
Model details
Manufacturer
GLOCK
Model & version
Glock 20 · Gen 2
Mounting details
Glock rear-sight dovetail (standard and Slimline slides)
Compatibility records
133
Sights
Triggers & internals
Triggers
21 listed- Agency Arms
Glock DROP-IN TRIGGERS
Manufacturer documented - Glockmeister
Trigger Black Shoe Black Safety Gen1 - 4
Manufacturer documented - Johnny Glocks
Factory OEM trigger shoe Upgrade (modified & enhanced)
Manufacturer documented - Overwatch Precision
BRZ Trigger for Glock
Manufacturer documented
Recoil Springs
2 listed- DPM Systems
DPM "STANDARD VERSION" For Glock Models: 20-21-21SF Gens 1-2-3
Manufacturer documented - Sprinco
Glock 20 Versatility Kit
Manufacturer documented
Barrels & comps
Barrels
12 listed- KKM Precision
20 Match 10MM 4.6"OAL (Fits Glock G20 Gen 1-4)
Manufacturer documented - KKM Precision
20 Match 10MM 6.02"OAL (Fits Glock G20 Gen 1-4)
Manufacturer documented - KKM Precision
20 Match 10MM with .578×28 Suppressor Threads 5.2" OAL (Fits Glock G20 Gen1-4)
Manufacturer documented - KKM Precision
20 Match 10MM with 9/16×24 Suppressor Threads 5.2"OAL (Fits Glock G20 Gen 1-4)
Manufacturer documented
Compensators
2 listed- KKM Precision
20 Match 10MM Barrel with 5/8×32 Thread 4-Port Compensator (Fits Glock G20 Gen 1-4)
Manufacturer documented - KKM Precision
20 Match 40S&W Barrel with 5/8×32 Thread 4-Port Compensator (Fits Glock G20 Gen1-4)
Manufacturer documented
Optics & footprint adapters
Optic Plates
6 listed- Aimpoint
ACRO Rear Sight Adapter Plate for GLOCK
Interface match - C&H Precision
Fits GLOCK Rear Dovetail Adapter Holosun 407K / 507K / C&H EDC / EDC Enclosed / Olight Osight S STEEL
Interface match - Outerimpact
Red Dot Mount – MRA for Glock
Interface match - C&H Precision
Fits GLOCK Rear Dovetail Adapter Holosun 509T STEEL
Interface match
Also on this pistol
Holsters
3 makers- Alien Gear Holsterschecked 2026-11-01
- Galcochecked 2026-11-01
- PHLsterchecked 2026-11-01
Check each manufacturer’s options for your model, light and optic.
Categories with no listings (11)
About the GLOCK 20 Gen 2
- Type
- Pistol
- Manufacturer
- GLOCK
- Model & version
- Glock 20 · Gen 2
- Caliber
- 10mm
- Mounting details
- Glock rear-sight dovetail (standard and Slimline slides)
Other versions of the Glock 20
Compare versions and check the details for your exact model.
- GLOCK 20Adds: Glock Accessory Rail.
- GLOCK 20 Gen 3Adds: Glock Accessory Rail.
- GLOCK 20 Gen 4Adds: Glock Accessory Rail.
- GLOCK 20 Gen 5 MOSAdds: Glock MOS, Glock Accessory Rail. Lacks: Glock rear-sight dovetail (standard and Slimline slides).
- GLOCK 20 SFAdds: Glock Accessory Rail.
- GLOCK 20 V MOSAdds: Glock Accessory Rail, Glock MOS. Lacks: Glock rear-sight dovetail (standard and Slimline slides).