Glock 20 Gen 4 for sale
Updated · 26 products · 2 in stock · prices refreshed daily
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Glock 20 Gen4 10mm 4.61" Barrel 15-Rounds USA Made
Brand:
Glock
Action:
Semi-Auto
Barrel Length:
4.61"
Caliber:
10mm Auto
Capacity:
15
Finish Per Color:
Black
(0)
GLOCK PG203023-ALPINELAS G20 9MM G4 ALPN CERA
Brand:
Glock
Action:
Semi-Auto
Barrel Length:
4.61"
Caliber:
10mm Auto
Capacity:
15
Finish Per Color:
Camo
(0)
Glock PG2050204 G20 Gen4 10mm Auto 4.61" 15+1 Black/Coyote Battle Worn Flag Cerakote Black/Coyote Battle Worn Flag Rough Texture Interchangeable Backstraps Grip
Brand:
Glock
Action:
Semi-Auto
Barrel Length:
4.61"
Caliber:
10mm Auto
Capacity:
15
Finish Per Color:
Coyote Tan
(0)
GLOCK PA205S204MOSN G20 10M G4 FS 15R GRZZLY
Brand:
Glock
Action:
Semi-Auto
Barrel Length:
4.61"
Caliber:
10mm Auto
Capacity:
15
(1)
GLOCK G20 GEN4 ATACS
Brand:
Glock
Action:
Semi-Auto
Barrel Length:
4.6"
Caliber:
10mm Auto
Capacity:
15
Finish Per Color:
Camo
(0)
Glock G20 Gen4 10mm, 4.61" Barrel, Operator Flag Cerakote, Safe Action Trigger, 15rd
Brand:
Glock
Action:
Semi-Auto
Barrel Length:
4.61"
Caliber:
10mm Auto
Capacity:
15
Finish Per Color:
American Flag
(0)
GLOCK G20 Gen4 10mm Auto 4.61in 15rd Semi-Auto Pistol (UG2050204BEAR)
Brand:
Glock
Action:
Semi-Auto
Barrel Length:
4.61"
Caliber:
10mm Auto
Capacity:
15
Finish Per Color:
Black
(0)
GLOCK G20 GEN 4 REBUILT
Brand:
Glock
Action:
Semi-Auto
Barrel Length:
4.61"
Caliber:
10mm Auto
Capacity:
15
Finish Per Color:
Black
(0)
GLOCK G20 GEN 4
Brand:
Glock
Action:
Semi-Auto
Barrel Length:
4.6"
Caliber:
10mm Auto
Capacity:
15
(0)
GLOCK G20 GEN 4
Brand:
Glock
Action:
Semi-Auto
Barrel Length:
4.6"
Caliber:
10mm Auto
Capacity:
15
Rounds:
15
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Glock G20 G4 Gray Finish 10mm 4.61" Barrel Fixed Sights 10 Rd Mag
Brand:
Glock
Action:
Semi-Auto
Barrel Length:
4.6"
Caliber:
10mm Auto
Capacity:
10
Finish Per Color:
Grey
(0)
Glock G20 G4 Full Gray 10Mm 15+1 FS PG2050204GF 764503913419
Brand:
Glock
Action:
Semi-Auto
Barrel Length:
4.61"
Caliber:
10mm Auto
Capacity:
15
Finish Per Color:
Grey
(0)
Glock G20 G4 Full Fde 10Mm 15+1 FS PG2050204D 764503911347
Brand:
Glock
Action:
Semi-Auto
Barrel Length:
4.61"
Caliber:
10mm Auto
Capacity:
15
Finish Per Color:
Flat Dark Earth
(0)
GLOCK G20 G4 10MM TAN TIGER STRIPE # PG2050203TTS
Brand:
Glock
Action:
Semi-Auto
Barrel Length:
4.6"
Caliber:
10mm Auto
Capacity:
15
Finish Per Color:
Tan
(0)
Glock G20 G4 10Mm Odg Tiger Stripe # PG2050203GTS
Brand:
Glock
Action:
Semi-Auto
Barrel Length:
3.46"
Caliber:
9×19mm Parabellum
Capacity:
10
Finish Per Color:
OD Green
(0)
Glock G20 G4 10mm Acp 4.61" 10+1 Fde Fs
Brand:
Glock
Action:
Semi-Auto
Barrel Length:
4.61"
Caliber:
10mm Auto
Capacity:
10
Finish Per Color:
Flat Dark Earth
(0)
GLOCK 20G4 10MM 15RD FS GADSDEN DAV-12437
Brand:
Glock
Action:
Semi-Auto
Barrel Length:
4.6"
Caliber:
10mm Auto
Capacity:
15
(0)
Glock 20 Gen4 Fixed 10mm Acp 4.60" 10rd Black Sights
Brand:
Glock
Action:
Semi-Auto
Barrel Length:
4.61"
Caliber:
10mm Auto
Capacity:
10
Finish Per Color:
Black
(9)
Glock 20 Gen4 AUS 10mm, 4.61" Barrel, Fixed Sights, Matte Black, 15rd
Brand:
Glock
Action:
Semi-Auto
Barrel Length:
4.61"
Caliber:
10mm Auto
Capacity:
15
Finish Per Color:
Black
(0)
Glock 20 Gen 4 10mm Pistol, Gray - PG2050203GF
Brand:
Glock
Action:
Semi-Auto
Barrel Length:
4.61"
Caliber:
10mm Auto
Capacity:
15
Finish Per Color:
Grey
(0)
Glock 20 Gen 4 10mm Pistol, Flat Dark Earth - PG20502FDE
Brand:
Glock
Action:
Semi-Auto
Barrel Length:
4.61"
Caliber:
10mm Auto
Capacity:
15
Finish Per Color:
Flat Dark Earth
(0)
GLOCK 20 Gen 4 10mm Pistol with Night Sights and 3 Magazines
Brand:
Glock
Action:
Semi-Auto
Barrel Length:
4.61"
Caliber:
10mm Auto
Capacity:
15
(1)
Glock 20 Gen 4 10mm 15 Round Lipsey's Exclusive Pistol, Flat Dark Earth - PG2050203D
Brand:
Glock
Action:
Semi-Auto
Barrel Length:
4.61"
Caliber:
10mm Auto
Capacity:
15
Finish Per Color:
Flat Dark Earth
(13)
Glock 20 Gen 4 10 Round 10mm Pistol, Black - PG2050201
Brand:
Glock
Action:
Semi-Auto
Barrel Length:
4.6"
Caliber:
10mm Auto
Capacity:
10
Finish Per Color:
Black
Marketplace Insights
★ 5.0/5
based on 44 customer reviews across 26 products from 7 retailers
Overwhelmingly praised as a reliable, powerful 10mm handgun ideal for woods/backcountry carry with excellent recoil management and strong customer service.
What customers like
Reliable & Durable32%
I have 100 percent faith of no failures in inclement weather!
Woods/Backcountry Carry27%
Great fun shooting sidearm, diffinately worth having one of these as your side arms, especially as a backcountry hiker/hunter.
Recoil Management16%
It's heavy enough where the recoil is manageable and easy to be accurate.
Easy Transaction Process14%
Thanks guys, you made the process exceptionally easy.
High Firepower11%
An excellent and reliable option for those who want some big firepower in a semi auto handgun
Common concerns
Factory Sights Quality5%
usual crappy plastic sights, with rear not even centered from factory.
Product Info Clarity2%
Wish PSA would have included how many mags came with it in the description(3)
Frequently Asked Questions
Glock 20 Gen 4 for sale
Is the Glock 20 Gen 4 a good gun?
Whether it's "good" depends on your needs. Gen 4 owners praise its reliability, accuracy, and 10mm power for predator defense and hunting. The improved grip helps manage recoil. Currently available new, typically around $580. Consider your intended use and comfort with 10mm recoil before deciding.
Is the Glock 20 Gen 4 discontinued?
Yes, Glock discontinued the Gen 4 Glock 20, with shipments stopping November 30, 2025. New and used inventory remains available through retailers, typically around $580. Glock has confirmed a new V Series to replace discontinued models, but no Gen 5 Glock 20 has been announced as a current production model.
What is the difference between Glock 20 Gen 4 and Gen 5?
The Glock 20 Gen 5 MOS does exist. Compared to the Gen 4, the Gen 5 removes finger grooves, updates the grip texture, is slightly wider (1.38 in vs 1.34 in), and is lighter (29.81 oz vs 30.69 oz). Gen 5 also adds MOS optics-cut capability. We have both on our marketplace.
What slide is compatible with Glock 20?
The Glock 20 Gen 1-3 slides are interchangeable within those generations. Gen 4 and Gen 5 require generation-specific slides. Aftermarket manufacturers like Lone Wolf and Maple Leaf produce compatible Glock 20/21 slides in various configurations. Always confirm generation compatibility before purchasing.
How much is a G20 Gen 4 worth?
A used Glock 20 Gen 4 typically sells between $200 and $489, depending on condition, finish, sights, and aftermarket modifications. Note that the Gen 4 is discontinued, which affects availability and pricing. Check our marketplace listings for current deals.
Can you put a red dot on a Glock 20 gen 4?
Yes. The Gen 4 Glock 20 MOS includes a factory optics cut, making red dot installation straightforward. Non-MOS Gen 4 models require dovetail mounting or slide milling. Either way, choose an optic rated for heavy recoil, such as the Trijicon RMR or Leupold DeltaPoint Micro, as 10mm generates significant force.
What mags can a Glock 20 take?
The Glock 20 uses 10mm, 15-round factory magazines. These same mags fit the Glock 40, which shares the same frame. Aftermarket options from Lone Wolf and others are available. Check generation compatibility before purchasing aftermarket magazines.
What is the best holster for a Glock 20?
Best choice depends on your carry method. For concealed carry, IWB or appendix Kydex holsters offer strong retention and trigger guard coverage. OWB holsters suit open carry or duty use. Prioritize a full-size frame fit, and consider light-compatible variants. Reputable makers include Safariland, Vedder, and Tier 1 Concealed.
