Glock 40 Gen 4
(20)
Glock 40 Gen4, Semi-Automatic, 10mm, 6.02" Barrel, Modular Optics System, 15+1 Rounds
Brand:
Glock
Action:
Double Action
Barrel Length:
6.02in
Caliber:
10mm Auto
Capacity:
15
Finish Per Color:
Black
(1)
Glock 40 MOS Gen 4 10mm 6.02" Barrel 15-Rounds
Brand:
Glock
Action:
Double Action
Barrel Length:
6.02
Caliber:
10mm Auto
Capacity:
15+1
Finish Per Color:
Black
(20)
Glock 40 Gen 4 MOS 10 Round 10mm Pistol, Black - PG4030101MOS
Brand:
Glock
Action:
Semi-Auto
Barrel Length:
6.02in
Caliber:
10mm Auto
Capacity:
10+1
Finish Per Color:
Black
(13)
Glock 40 Gen4 MOS 10mm 6.02" Barrel 15-Rounds
Brand:
Glock
Action:
Double Action
Barrel Length:
6.02in
Caliber:
10mm Auto
Capacity:
15+1
Finish Per Color:
Black
(0)
GLOCK 40 GEN4 10MM ACP 6.02" 10RD BLACK ADJ MOS
Brand:
Glock
Action:
Double Action
Barrel Length:
6.02in
Caliber:
10mm Auto
Capacity:
10
Finish Per Color:
Black
(0)
Glock 40 Gen 4 Mos Competition Handgun 10Mm 15/Rd Magazines (3) 6.02" Barrel Black Adjustable Sights Usa Refurbished UR40501MOS
Brand:
Glock
Barrel Length:
6"
Caliber:
10mm Auto
Capacity:
15
(0)
Glock PG4050104MOS-CT 40 Gen 4 MOS 10mm, 6.02" Barrel Coyote Tan, (3) 13-Rd Iron Valley Exclusive
Brand:
Glock
Barrel Length:
6.02"
Caliber:
10mm Auto
Capacity:
13
(0)
GLOCK G40 GEN 4 MOS REBUILT
Brand:
Glock
Action:
Double Action
Barrel Length:
6in
Caliber:
10mm Auto
Capacity:
15
Finish Per Color:
Black
(0)
Glock G40 Gen 4 MOS 10mm 6.02" 15rd Pistol, Sandstorm Camo - UG4030103MOSSC
Brand:
Glock
Barrel Length:
6.02"
Caliber:
10mm Auto
Capacity:
15
(0)
Glock G40 Gen4 MOS Long Slide, 10mm. 6" Barrel Grey Frame, Modular Optic System 3-15rd Mags
Brand:
Glock
Action:
Pistol
Barrel Length:
6in
Caliber:
10mm Auto
Capacity:
15+1
Rounds:
15
(0)
Glock 40 Gen 4 MOS 10mm Pistol, FDE - PG4030103MOSD
Brand:
Glock
Action:
Pistol
Barrel Length:
6in
Caliber:
10mm Auto
Capacity:
15+1
Rounds:
15
Marketplace Insights
★ 4.7/5
based on 54 customer reviews across 22 variants from 28 retailers
Overwhelmingly positive reviews praising the Glock 40's accuracy, 10mm performance, and fast shipping, with isolated complaints about order cancellations and delivery delays.
What customers like
Fast Shipping & Service31%
Super fast shipping from PSA. Item arrived undamaged and in perfect condition.
Accuracy & Performance24%
Day 1 I was hitting 6" group 70 yards!
Excellent 10mm Option20%
Not many options for 10mm guns that aren't 1911 derivatives, especially with a 6 inch barrel.
Recoil Management17%
The forwarded weight of longslide absorbs the recoil that makes the G20 trash to shoot.
Reliable & Durable15%
Almost 400 rds no issues whatsoever.
Common concerns
Order Cancellation Issues11%
Ordered the Glock 40 Gen 4 mos in 10 round configuration to comply with New Jersey oh, my order was canceled saying non-compliant and I cannot get a response
Slow Delivery Times7%
Service time was horrible. You ask me to review and I haven't even received the gun yet.
Frequently Asked Questions
Glock 40 Gen 4
Is there a Glock 40 Gen 4?
Yes. Glock makes the G40 Gen4 MOS, a full-size 10mm semi-auto pistol with a long slide designed for hunting, tactical use, and competition. It features a modular optics system for mounting reflex sights and holds 15 rounds. Currently in production and typically priced around $700.
Is the Glock 40 Mos discontinued?
Yes, the Glock 40 MOS Gen4 has been officially discontinued by Glock. Despite earlier rumors being dismissed, Glock confirmed the model's removal from its active lineup. You may still find remaining inventory through retailers, but Glock no longer manufactures this pistol.
Is the Glock 40 Gen 4 discontinued?
Yes, Glock discontinued the G40 entirely — not just the Gen4 variant. The long slide 10mm G40 has been purged from Glock's lineup alongside the G41. This is part of a broader discontinuation of Gen4 and some Gen5 models. Remaining units circulate through retailers and the used market.
Is the Glock 40 Gen 4 reliable?
The Glock 40 Gen 4 is highly reliable. Users report consistent function under harsh conditions. The full-size frame and 6-inch barrel manage the 10mm's recoil effectively. The MOS system allows straightforward optics mounting. It's a dependable choice for hunting, bear defense, or competition.
Which 10mm Glock is the best?
"Best" depends on your needs. The G20 Gen5 suits most uses with its 15-round capacity and manageable size. The G29 is smaller for concealed carry. The G40 MOS has a longer barrel for hunting. Match the choice to your intended purpose.
How much is a Glock 40 retail price?
The Glock 40 Gen 4 MOS can retail up to $1,549.99 new at some retailers. Recent sales data shows a current average new price around $798, with a 12-month average near $735. Prices vary based on condition and retailer, so shop around for the best deal.
Will a Glock 20 holster fit a Glock 40?
Most Glock 20 holsters fit the Glock 40 since both share the same frame width and grip dimensions. However, the Glock 40 has a longer barrel and slide, so closed-end holsters won't fit. Open-ended or adjustable holsters are your best option. Confirm compatibility with the manufacturer before buying.
Is Glock 40 stronger than Glock 20?
Both fire 10mm Auto, so neither is "stronger"—they use identical ammunition. The G40's longer barrel yields slightly higher muzzle velocity and better accuracy. The G20 is more compact. The difference is handling and precision, not power.
Will a Glock 20 magazine fit a Glock 40?
Yes, Glock 20 magazines work in the Glock 40. Both pistols share the same frame size and chamber 10mm Auto, so their standard 15-round magazines are fully interchangeable.