12 Umarex Glock 17 Gen 5 Co2 Airsoft of 2026 For Skirmish Play

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 specs3

Ammunition and Velocity

6mm plastic airsoft BBs up to 320 FPS

Optic Compatibility

The MOS-ready slide allows mounting compatible pistol micro reflex sights for faster target acquisition during matches.

Magazine Reference

Part 2276342 (14-round drop-free CO2)

Pros & cons43

Pros

• Fires 6mm plastic BBs up to 320 FPS for field-compliant skirmish velocity
• MOS-ready slide accepts micro pistol reflex sights
• Drop-free 14-round magazine matches authentic tactical reload drills
• Officially licensed Gen 5 frame features modern Glock ergonomics

Cons

• Half-blowback action delivers less recoil kick than full gas blowback systems
• 14-round capacity is lower than standard 17-round or 18-round airgun magazines
• CO2 cartridges must be purchased separately

2

Umarex High-Grade CO2 Cartridges for Pellet Guns, BB Guns and

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  9.4
• Brand
  Umarex

Key specs2

Power Source Spec

12-gram non-threaded CO2 cylinders

Cartridge Pack Size

12 individual 12g CO2 capsules

Pros & cons32

Pros

• Provides consistent 12g CO2 power for airsoft and airgun replicas
• 12-pack bundle covers multiple magazine reloads during target practice
• Umarex-branded formulation helps ensure proper valve and seal seating

Cons

• Disposable single-use design requires regular replacement
• Rapid firing can lower operating temperature and decrease gas output

3

Glock 19 Gen3 .177 Caliber BB Gun Air Pistol

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  8.8
• Brand
  Umarex

Key specs2

Airgun Velocity Spec

Up to 410 FPS with .177 steel BBs

Accessory Mounting

Integrated Weaver accessory rail

Pros & cons43

Pros

• Shoots .177 caliber steel BBs at brisk velocities up to 410 FPS
• Compact Glock 19 dimensions fit standard holsters and tactical rigs
• Integrated Weaver accessory rail supports mounted tactical lights or lasers
• 15-shot magazine provides ample capacity for steel BB plinking

Cons

• Fires .177 steel BBs and is strictly prohibited at airsoft arenas
• Non-blowback slide action offers no recoil feedback during training
• Fixed sights lack optics plate mounting options

4

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

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  8.6
• Brand
  Umarex

Key specs2

Action Mechanism

Blowback metal slide powered by 12g CO2

Duty Holster Fit

Sized to fit most standard aftermarket Glock duty holsters for tactical draw practice.

Pros & cons43

Pros

• Realistic blowback cycling with a full metal slide enhances feedback
• Drop-out metal magazine holds 18 steel BBs for realistic reloads
• Generates up to 365 FPS muzzle velocity for target plinking
• Dimensionally compatible with most aftermarket duty holsters

Cons

• Fires .177 steel BBs making it entirely unsafe and banned for airsoft games
• Gen 3 frame profile lacks Gen 5 ambidextrous slide stop and flared magwell
• Fixed sights cannot mount micro reflex red dot optics

5

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

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  8.6
• Brand
  Umarex

Key specs2

Slide and Frame Build

Full metal slide combined with realistic controls and authentic Gen 4 frame ergonomics.

Plinking Velocity

Up to 320 FPS (.177 caliber steel BB)

Pros & cons43

Pros

• Full metal blowback slide mimics authentic firearm cycling
• 18-shot drop-out metal magazine supports rapid steel BB shooting
• Authentic Gen 4 textured grip and licensed Glock markings
• Fits standard aftermarket duty holsters for realistic draw practice

Cons

• Restricted to .177 steel BBs and cannot be fielded in 6mm airsoft skirmishes
• Slide is not optics-cut for reflex sight installation
• Uses CO2 cartridges that are not included in the package

6

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

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  8.6
• Brand
  Umarex

Key specs1

Magazine Compatibility

Engineered specifically for Umarex Glock 17 Gen3 .177 caliber steel BB air pistols.

Pros & cons32

Pros

• Serves as an authentic factory spare magazine for Umarex Gen3 BB pistols
• Drop-out metal construction withstands rapid magazine exchange drills
• Houses both 12g CO2 cartridge and .177 steel BB ammunition

Cons

• Incompatible with 6mm airsoft Glock pistols or Gen 5 MOS airguns
• Magazine only with no BBs or CO2 capsules included

7

Elite Force Glock 17 Gen5 GBB Blowback 6mm BB Pistol

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  8.6
• Brand
  Elite Force

Key specs2

Airsoft Field Suitability

6mm plastic BB gas blowback platform

Ergonomic Generation

Features authentic Glock Gen 5 styling, updated frame contours, and realistic blowback action.

Pros & cons42

Pros

• Gas blowback system delivers authentic cycling recoil for airsoft skirmishes
• Fires standard 6mm plastic BBs suitable for competitive arena play
• Authentic Gen 5 frame features updated grip texturing and ergonomics
• Full-size Glock 17 platform fits matching tactical duty holsters

Cons

• Listing details leave specific FPS rating and magazine capacity unstated
• Requires verifying whether it uses green gas or CO2 magazine setups

8

Glock 19 Gen 5 MOS .177 Caliber BB Gun Pistol

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  8.4
• Brand
  Umarex

Key specs2

Included Optic Plates

4 MOS adapter plates included

Drop-Free Airgun Mag

17 BB capacity (Part 2255231)

Pros & cons43

Pros

• Includes 4 modular optic system plates to mount popular micro red dots
• Drop-free 17-shot magazine houses both the BBs and a 12g CO2 cartridge
• Shoots .177 caliber steel BBs up to 330 FPS for backyard plinking
• Integrated accessory rail accommodates weapon-mounted lights and lasers

Cons

• Uses .177 steel BB ammunition that is strictly prohibited in airsoft games
• Compact Glock 19 frame does not offer full Glock 17 grip length
• Spare magazine requires specific part number 2255231

9

Glock 17 Gen 5 MOS Blowback .177 Caliber BB Gun

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  8.4
• Brand
  Umarex

Key specs2

Optic Mounting System

Features a factory MOS cut on the slide to attach compatible micro pistol reflex sights.

Airgun Velocity Spec

Up to 360 FPS (.177 steel BB)

Pros & cons43

Pros

• Blowback slide action simulates realistic slide cycling on every shot
• MOS-ready slide accepts micro reflex pistol sights for optics practice
• 18-round drop-free magazine provides ample capacity for steel BB shooting
• Rated up to 360 FPS muzzle velocity with 12g CO2 power

Cons

• .177 steel BB caliber makes it completely unsuitable for airsoft skirmishes
• Requires dedicated airgun spare magazine part number 2255220
• Umarex CO2 cylinders and optic sights must be acquired separately

10

Glock 17 Gen 5 MOS Blowback .177 Caliber BB Gun

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  7.6
• Brand
  Umarex

Key specs2

Platform Action

Blowback action with MOS optics cut

Caliber Verification

Chambered in .177 caliber for steel BB target shooting rather than 6mm plastic BB airsoft use.

Pros & cons33

Pros

• MOS-ready slide allows mounting pistol micro red dot optics
• Blowback action delivers visual slide cycling during plinking sessions
• Authentic Gen 5 Glock 17 frame styling matches real firearm dimensions

Cons

• Fires .177 steel BBs and must never be used in airsoft games
• Listing omits exact magazine capacity and included optic plate specs
• CO2 power source requires verifying valve seal before shooting

11

Glock 17 Gen 5 MOS Blowback 6mm BB Gun Airsoft

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  6.4
• Brand
  Elite Force

Key specs2

Skirmish Readiness

6mm plastic airsoft BB caliber

Optic Compatibility

Features an MOS slide cut designed to host compatible micro reflex sights for competitive airsoft matches.

Pros & cons42

Pros

• Fires 6mm plastic BBs making it safe and compliant for airsoft field play
• MOS-ready slide lets skirmishers mount compatible micro red dot optics
• Blowback slide operation provides authentic cycle feedback during matches
• Gen 5 Glock 17 frame accommodates standard tactical holsters

Cons

• Product listing omits exact FPS rating and included optic plate hardware
• Spare magazine model number is not detailed in the manufacturer listing

12

Glock 17 Gen 5 MOS .177 Caliber BB Gun Pistol

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  4.0
• Brand
  Umarex

Key specs1

Magazine Compatibility

Engineered specifically for the Glock 17 Gen 5 MOS .177 caliber BB pistol platform.

Pros & cons33

Pros

• Designed specifically for Umarex Glock 17 Gen 5 MOS .177 BB air pistols
• Drop-free mechanism allows realistic tactical magazine reload drills
• Metal housing integrates internal valve and 12g CO2 cartridge bay

Cons

• Incompatible with 6mm airsoft Glock replicas
• Does not fit Gen 3 or Gen 4 Glock airgun models
• Ammo capacity is not explicitly stated on the listing

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

How do you verify you are buying the 6mm airsoft Glock 17 Gen 5 instead of the .177 steel BB model?

Check the caliber specification on the packaging or item description to confirm it explicitly lists 6mm BB. Umarex offers Glock 17 Gen 5 models in both 6mm airsoft and .177 caliber steel BB configurations that look almost identical on the outside. Airsoft fields prohibit .177 caliber BB guns because metal projectiles create serious safety risks against eye protection and protective gear. If you need a dedicated target pistol for backyard plinking instead, consider options for the best CO2 BB gun, but competitive airsoft games strictly require the 6mm plastic BB version.

Can you mount a micro red dot sight directly to the Glock 17 Gen 5 MOS airsoft slide?

Yes, the Glock 17 Gen 5 MOS airsoft model is factory optics-ready to accept pistol-style reflex sights. The Modular Optics System slide cutout allows you to attach compatible micro reflex sights low on the slide for faster target acquisition. Because specific reflex sights require matching adapter plates, verify which mounting plate pattern comes packaged with your pistol or if your chosen optic footprint requires an additional adapter plate before installation.

Are .177 caliber Glock magazines compatible with the 6mm Glock 17 Gen 5 airsoft pistol?

No, magazines made for .177 caliber BB airguns will not function in a 6mm airsoft Glock 17 Gen 5. While both variants use 12-gram CO2 cartridges as their power source, the feed lips, internal followers, and gas delivery valves are engineered specifically for either steel shot or 6mm plastic BBs. An 18-shot .177 caliber magazine from a Gen3, Gen4, or Gen5 airgun cannot hold or feed 6mm rounds. Always verify that your spare magazines explicitly state 6mm BB airsoft compatibility before ordering.

What is the difference between half-blowback and full blowback Glock 17 Gen 5 airsoft models?

The primary difference comes down to slide travel and cycling action. A full blowback model allows the slide to cycle through its complete mechanical travel distance, creating realistic slide operation for recoil control drills. A half-blowback Glock 17 Gen 5 airsoft pistol moves the slide with a shortened stroke, which uses less gas from the 12-gram CO2 cartridge to maintain steady cycling. If full mechanical movement is necessary for your training drills, verify that the pistol specifications state blowback rather than half-blowback.

What type of CO2 cartridge does the Glock 17 Gen 5 airsoft pistol use?

The pistol runs on standard 12-gram CO2 cartridges that fit inside the drop-free magazine. High-grade 12g CO2 capsules supply the gas pressure needed to drive the slide mechanism and fire 6mm airsoft BBs smoothly. Seat the cartridge squarely into the magazine compartment and turn the piercing screw until snug without over-tightening to protect the internal seals from premature wear.

Will tactical lights and standard holsters fit the Glock 17 Gen 5 airsoft pistol?

Yes, tactical accessories attach directly to the integrated lower accessory rail built into the frame. The Gen 5 airsoft frame mirrors authentic Glock frame dimensions, so standard weapon-mounted lights and duty holsters fit as expected. If you run your sidearm in training alongside long-gun setups like a best tactical air rifle, make sure your holster includes an optic relief cut if you decide to install a reflex sight onto the MOS slide.