10 Umarex Glock 17 Gen 5 Airsoft Pistol of 2026 For Skirmish And Holster Training

1

Glock 17 Gen 5 MOS Half-Blowback 6mm BB Gun Airsoft

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• ARS Mark

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  9.6
• Brand
  Umarex

Key specs2

Action and caliber

Half-blowback 6mm airsoft

Optics compatibility

The slide cut accepts micro reflex sights, but verify whether specific mounting hardware or adapter plates are required before installing an optic.

Pros & cons43

Pros

• Accepts 6mm plastic airsoft BBs for arena and skirmish legality
• MOS-ready slide accepts micro reflex optics
• Delivers muzzle velocities up to 320 FPS for outdoor play
• Features authentic Gen 5 Glock frame and slide detailing

Cons

• Operates on half-blowback action rather than full slide cycling
• Magazine holds only 14 rounds compared to full-size 17-round magazines
• Requires 12g CO2 cartridges instead of green gas

2

Umarex Glock 17 Gen3 GBB Blowback 6mm BB Pistol Airsoft

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  8.8
• Brand
  Elite Force

Key specs2

Generation style

Gen3 frame design

Airsoft field readiness

Gas blowback action and 6mm caliber make this suitable for standard airsoft games, though it lacks the flared magwell and front slide serrations of Gen 5 models.

Pros & cons33

Pros

• Uses standard 6mm plastic BBs permitted in airsoft arenas
• Gas blowback mechanism provides authentic slide recoil cycling
• Licensed Umarex markings ensure authentic Glock dimensions

Cons

• Features earlier Gen3 frame ergonomics without Gen 5 modular features
• Listing omits optic mounting plate compatibility
• Listing does not state magazine capacity or included gas magazine type

3

Elite Force Glock 17 Gen5 GBB Blowback 6mm BB Pistol

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  8.6
• Brand
  Elite Force

Key specs2

Platform design

Gen5 6mm gas blowback

Holster and field use

Built on the Gen 5 frame, this replica suits both tactical gear practice and field play, but confirm optic cut specifications with the seller if planning to mount a red dot.

Pros & cons32

Pros

• Fires standard 6mm airsoft BBs suitable for skirmish fields
• Full gas blowback action mimics authentic cycling for holster draw practice
• True Gen5 Glock design includes updated frame ergonomics

Cons

• Listing does not state whether the slide is optic-ready or standard iron sights
• Listing omits magazine capacity and power source specifics to confirm before purchase

4

Umarex GLOCK 17 Blowback .177 Caliber BB Gun Air Pistol,

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  8.6
• Brand
  Umarex

Key specs2

Ammunition type

.177 steel BBs only

Target plinking and holster fit

Designed for backyard steel target plinking and duty holster drills, but strictly forbidden on airsoft skirmish fields due to steel ammo.

Pros & cons43

Pros

• Full metal slide and drop-out metal magazine provide realistic training weight
• Fits most aftermarket duty holsters for authentic draw practice
• Muzzle velocity reaches up to 365 FPS with .177 steel BBs
• 18-shot drop-out metal magazine provides generous plinking capacity

Cons

• Fires .177 caliber steel BBs and cannot be used in airsoft games or against players
• Gen3 frame design lacks Gen 5 ambidextrous slide stop and front serrations
• Requires 12-gram CO2 cartridges that lose pressure during rapid fire

5

GLOCK 17 Blowback .177 Caliber BB Gun Air Pistol, Gen4

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  8.6
• Brand
  Umarex

Key specs2

Steel BB airgun warning

.177 caliber airgun

Training application

Fits standard Glock duty holsters for tactile training, but steel BB propulsion means it cannot substitute for a 6mm airsoft sidearm.

Pros & cons43

Pros

• Realistic blowback action with a full metal slide matches duty pistol dimensions
• Compatible with most aftermarket duty holsters for gear practice
• 18-shot drop-out metal magazine allows continuous target shooting
• Shoots .177 caliber steel BBs at up to 320 FPS

Cons

• Not an airsoft pistol and strictly prohibited from airsoft fields due to .177 steel ammo
• Gen4 frame configuration lacks the flared magwell and updated styling of Gen 5
• CO2 cartridges are not included and require Umarex-brand seals for best operation

6

Glock 17 Gen 5 MOS Blowback .177 Caliber BB Gun

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  8.4
• Brand
  Umarex

Key specs2

Airgun caliber

.177 steel BB caliber

MOS optics setup

Provides the modern Gen 5 MOS slide profile for reflex sight mounting, but fires steel BBs for plinking rather than plastic BBs for skirmishing.

Pros & cons43

Pros

• MOS-ready slide cut accepts pistol-style reflex sights
• Authentic Gen 5 iteration features modern Glock styling and ergonomic updates
• Reaches up to 360 FPS with .177 caliber steel BBs
• Drop-free magazine holds 18 steel BBs for target shooting

Cons

• Fires .177 steel BBs, making it completely ineligible for airsoft skirmishes
• Requires purchasing separate 12g CO2 cartridges and spare mag part 2255220
• Listing does not state if optic adapter plates are included in the box

7

Glock 19 Gen 5 MOS .177 Caliber BB Gun Pistol

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  8.2
• Brand
  Umarex

Key specs2

Optics package

• Includes 4 factory optics mounting plates
• Accepts most popular micro red dot sights
• Integrated accessory rail for weapon lights

Model and caliber distinction

Replicates the compact Glock 19 instead of the Glock 17, and shoots steel BBs that are hazardous and prohibited in airsoft games.

Pros & cons43

Pros

• Includes 4 optics adapter plates to fit nearly any micro pistol optic
• Integrated accessory rail allows mounting tactical lights and accessories
• 17-round drop-free magazine houses both the BBs and the 12-gram CO2 cartridge
• Propels .177 BBs up to 330 FPS for backyard plinking

Cons

• Compact Glock 19 frame rather than the full-size Glock 17 frame
• Chambered in .177 steel BB caliber and strictly banned from airsoft gaming
• Requires 12g CO2 cartridges that must be purchased separately

8

Glock 17 Gen 5 MOS Blowback .177 Caliber BB Gun

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  7.6
• Brand
  Umarex

Key specs2

Caliber classification

.177 caliber steel BB

Duty gear practice

Matches Gen 5 Glock 17 exterior lines for holster reps, but check specifications to ensure you do not order an airgun when shopping for airsoft.

Pros & cons32

Pros

• Gen 5 MOS slide configuration allows reflex sight mounting
• Blowback cycling gives realistic slide reciprocation for target drills
• Authentic Glock 17 full-size proportions suit duty holster draw practice

Cons

• Fires .177 caliber steel BBs and cannot be used for airsoft field play
• Listing omits velocity, magazine capacity, and included plate details to confirm

9

Glock 17 Gen 5 MOS Blowback 6mm BB Gun Airsoft

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  6.4
• Brand
  Elite Force

Key specs2

Field airsoft rating

6mm airsoft blowback

Red dot readiness

Designed as a 6mm airsoft pistol with an MOS cut, though buyers must verify whether optic mounting plates come in the package or need a separate order.

Pros & cons42

Pros

• Fires 6mm plastic BBs safe and approved for airsoft field gameplay
• MOS optic-ready slide allows mounting compatible red dot sights
• Gen 5 frame profile provides modern Glock ergonomics and handling
• Blowback action simulates firearm cycling during skirmish scenarios

Cons

• Listing does not state whether optic adapter plates are bundled or sold separately
• Listing omits magazine capacity, velocity ratings, and gas type specifications

10

Glock 17 Gen 5 MOS GBB Blowback 6mm BB Gun

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  -
• Brand
  Elite Force

Key specs2

Power source and magazine

• Powered by standard airsoft green gas
• 17-round drop-free magazine capacity
• Compatible with spare magazine part 2276347

Optics mounting requirement

Features Glock MOS slide cut, but mounting a micro reflex sight requires purchasing adapter plate kit 2211388 separately.

Pros & cons52

Pros

• Fires 6mm plastic BBs at up to 300 FPS with .20g ammo for field legality
• Runs on airsoft green gas and accepts standard magazine part 2276347
• Full blowback operation delivers crisp and realistic slide cycling
• Reversible magazine catch accommodates left- and right-handed tactical shooters
• 17-round drop-free magazine provides skirmish-ready capacity

Cons

• MOS optic plate kit item 2211388 is sold separately and not included in the box
• Green gas performance drops in cold outdoor weather compared to regulated systems

Last update on 2026-10-10 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Product Advertising API

How do you verify whether a Glock 17 Gen 5 replica is an airsoft pistol or a steel BB gun?

Check the caliber designation and ammunition type printed on the packaging and product specifications. Umarex produces Glock 17 Gen 5 models in both 6mm plastic BB airsoft configurations and .177 caliber steel BB airgun formats. Skirmish fields only permit 6mm plastic BB replicas for play, so confirm the listing specifies 6mm rather than .177 caliber. If your primary goal is backyard steel target practice instead, look at a dedicated CO2 BB gun for realistic training and plinking rather than an airsoft sidearm.

Does the Glock 17 Gen 5 airsoft pistol run on green gas or 12g CO2 cartridges?

The power source depends on the exact model you select. The Glock 17 Gen 5 MOS GBB airsoft version is powered by airsoft green gas, which fills directly into the magazine through a lower valve. In contrast, several .177 caliber Glock air pistols run on a 12-gram CO2 cartridge. Check the product listing specifications carefully before buying to make sure you purchase the proper propellant and charging accessories for your setup.

Are optic adapter plates included with the Glock 17 Gen 5 MOS slide?

Not always. While the Glock 17 Gen 5 MOS models feature the Modular Optics System slide cut and are optics ready to accept a reflex sight, the mounting plates are not bundled in every package. Certain replicas, such as the Glock 19 Gen 5 MOS .177, explicitly include 4 optics plates in the box to fit various micro sights. Glock 17 Gen 5 airsoft listings vary, so check the package contents to verify whether the adapter plates are included or sold as a separate accessory kit.

What is the difference between half-blowback and GBB on the Glock 17 Gen 5?

The difference comes down to mechanical slide cycling and physical weight. Full gas blowback (GBB) models cycle the slide across its full mechanical travel to mimic realistic slide motion and recoil impulse during skirmish drills. The Glock 17 Gen 5 half-blowback 6mm variant features a different internal mechanism and lists a heavier weight of 1.763698096 pounds, compared to 0.81 pounds for the Glock 17 Gen 5 MOS GBB airsoft model. Check the product title for GBB if you require full slide travel for holster draw and weapon manipulation practice.

Which replacement magazine fits the Glock 17 Gen 5 MOS 6mm airsoft gun?

The Glock 17 Gen 5 MOS GBB 6mm airsoft pistol is compatible with airsoft magazine part number 2276347. Matching this exact part number ensures proper gas seal alignment and dependable feeding in your airsoft sidearm. Standard 18-shot .177 caliber CO2 magazines are engineered exclusively for steel BB air pistols and will not work in 6mm airsoft frames.

How do you keep airsoft sidearms separated from target airguns during practice?

Keep your field gear, magazines, and ammunition stored in dedicated, labeled cases. If you train outdoors with a tactical air rifle for training alongside your pistol draw drills, keep .177 pellets and steel BBs in an entirely separate range bag from your 6mm airsoft ammo. Checking magazine markings and BB diameter before every loading session prevents damaging your airsoft internals with metallic shot.