Glock G20 Gen5 MOS 10mm
Model: PA205S203MOS
Glock G20 Gen5 MOS 10mm
Model: PA205S203MOS
Full Specifications
About This Firearm
The Glock G20 Gen5 MOS is a polymer-framed striker-fired 10mm built for duty and woods carry. It is current in Glock's lineup. The slide is cut for Glock's Modular Optic System and the adapter plates come in the box, so a reflex sight bolts straight to the slide with no milling and no separate mount.
Three 15-round magazines come with it, along with those plates, a magazine loader, a cleaning rod, a cable lock and a case. The magazine catch reverses for a left-handed shooter. Trigger pull is 5.8 lb and there is no manual safety. The barrel is 4.61 inches, and the pistol runs 8.07 inches long and 1.38 inches wide.
If you're cross-shopping, the Sig Sauer P320 XTEN has a 5-inch barrel and XRAY3 day and night sights at 33.0 oz, with the same 15 rounds and a factory optic cut, but two magazines in the box in place of three. The Smith & Wesson M&P M2.0 10mm has an MSRP of $699, a 4.6-inch barrel and a manual thumb safety, and it sizes the grip with four palmswell inserts, which change trigger reach as well as circumference.
Best For
Strengths & Limitations
- The slide and barrel carry an nDLC surface treatment, the same finish Glock puts on its service pistols, so sweat under a holster does not mark them.
- The Safe Action system keeps the trigger safety, firing pin safety and drop safety internal, and all three reset as the trigger returns.
- The Gen5 frame texture is coarse enough to hold a wet hand, and it covers the full grip instead of sitting in panels.
- A polymer frame carries less mass than a steel 10mm of the same size, so full-power loads come back faster in the hand.
- An MOS plate sits between the dot and the slide, which puts the sight higher over the bore than a directly milled slide would.
- With no manual safety, a holster that fully covers the trigger guard is part of the purchase.
Category Rankings
How the Glock G20 Gen5 MOS 10mm ranks among full-size 10mm Auto handguns.
Compare Glock G20 Gen5 MOS 10mm
See how the Glock G20 Gen5 MOS 10mm stacks up against similar firearms.
Compatible Ammunition
Find the best prices on compatible 10mm Auto ammunition.
Shop 10mm Auto Ammo →Ballistics Calculator
Calculate trajectory, drop, and energy for 10mm Auto ammunition.
10mm Auto Ballistics →Where to Buy
No prices available at this time.
Alternatives to Consider
Similar full-size 10mm Auto handguns ranked by similarity.
| NAME | BEST PRICE |
|---|---|
|
Smith & Wesson M&P 10mm M2.0 4-inch 10mm Auto
Smith & Wesson
|
— |
|
Smith & Wesson M&P M2.0 10mm
Smith & Wesson
|
— |
|
Springfield Armory XD-M Elite 10mm
Springfield Armory
|
— |
|
Sig Sauer P320 XTEN 10mm
Sig Sauer
|
— |
|
EAA Witness Steel 10mm
EAA
|
— |
Frequently Asked Questions
What is the barrel twist?
1:9.84, Glock's standard rate for 10mm, so any factory 10mm load is within what the barrel stabilizes.
Is this the same gun as the G20 V MOS?
Yes. Glock's current page for the pistol is headed GLOCK 20 V MOS while the body text still calls it the G20 Gen5 MOS, and the 2026 buyers guide lists it as the G20 V MOS.
What did Gen5 change from the Gen4 G20?
The slide stop lever works from both sides, the grip takes Glock's Modular Backstrap System, and the magazine followers changed to high-visibility orange.
What is the frame made of?
Polymer with hardened steel guides molded into it, which is the construction Glock describes in the current manual for its standard-frame pistols.
