9 Umarex Glock 17 Green Gas of 2026 For Realistic Training

1

Umarex Glock 17 Gen3 GBB (GHK) Blowback 6mm BB Pistol

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• ARS Mark

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  8.1
• Brand
  Umarex

Key specs2

Action and Mechanism

Gas Blowback

Platform Generation

Umarex replicates the Glock 17 Gen3 frame with traditional finger grooves and a full-size slide designed for 6mm airsoft BBs.

Pros & cons32

Pros

• Features authentic Glock 17 Gen3 styling with finger grooves and thumb rests
• Gas blowback system produces realistic cycling action for training drills
• Uses standard 6mm plastic airsoft BBs for field and target use

Cons

• Factory listing omits velocity ratings and specific magazine part numbers
• Gen3 slide lacks optic mounting cuts for micro red dot sights

2

Elite Force Glock 17 Gen4 GBB Blowback 6mm BB Pistol

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  9.0
• Brand
  Umarex

Key specs2

Frame Configuration

Gen4 Full Size

Ammunition Standard

Operates exclusively with 6mm plastic BBs and utilizes a gas blowback system for slide cycling.

Pros & cons32

Pros

• Gen4 frame incorporates rough textured grip panels for secure weapon handling
• Gas blowback cycling replicates functional slide operation on every shot
• Chambered for standard 6mm airsoft BBs to match regulation field limits

Cons

• Listing does not specify velocity output or included magazine capacity
• Factory slide does not include an MOS red dot optic mounting cut

3

Elite Force Glock 19 Gen3 GBB 6mm BB Pistol Airsoft

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  9.0
• Brand
  Umarex

Key specs2

Slide and Frame Sizing

Compact Glock 19

Receiver Generation

Features the compact Gen3 frame format, offering a shorter grip profile suited for concealed carry training.

Pros & cons32

Pros

• Compact Glock 19 frame offers quicker draw times and easier concealment practice
• Gas blowback slide action provides realistic feedback during weapon manipulation
• Fires 6mm airsoft BBs suitable for skirmish games and tactical practice

Cons

• Compact frame accepts shorter magazines that do not fit full-size G17 duty grips
• Manufacturer listing leaves out exact muzzle velocity and magazine capacity

4

Umarex Glock 19X Blowback 6mm BB Pistol Airsoft Gun, Glock

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  9.0
• Brand
  Elite Force

Key specs2

Crossover Dimensions

Full Grip with Compact Slide

Gas Recoil System

Combines 6mm airsoft BB operation with gas blowback slide movement on the 19X crossover platform.

Pros & cons32

Pros

• Crossover design pairs a full-size frame with a compact slide for faster tracking
• Gas blowback mechanism delivers crisp slide movement during rapid fire
• Standard 6mm airsoft chambering allows use in organized airsoft games

Cons

• Slide profile lacks factory optic cutouts for direct red dot sight attachment
• Product listing does not document velocity figures or magazine model numbers

5

Umarex Glock 17 Gen3 GBB Blowback 6mm BB Pistol Airsoft

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  8.8
• Brand
  Elite Force

Key specs2

Finger Groove Ergonomics

Gen3 Molded Grooves

Feeding Caliber

Fires standard 6mm airsoft BBs and cycles via a gas blowback action built to match standard duty holsters.

Pros & cons32

Pros

• Classic Gen3 receiver design matches traditional duty holsters and accessories
• Blowback slide cycling simulates semi-automatic firearm mechanics
• Shoots standard 6mm plastic airsoft BBs for versatile target drills

Cons

• Gen3 frame lacks the reversible magazine release found on later generations
• Product data does not state factory muzzle velocity or magazine round count

6

Glock 19X Gen5 .177 Caliber BB Gun Air Pistol, Black

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  8.8
• Brand
  Umarex

Key specs2

Ammunition Warning

.177 Caliber Steel BB Only

Powerplant Distinction

This pistol fires .177 steel BBs from an 18-round magazine and is not compatible with 6mm airsoft fields or green gas fuel.

Pros & cons32

Pros

• Full metal slide delivers strong blowback action and authentic 1.7-pound weight
• 18-round drop-free magazine supports realistic reload sequences
• Semi-automatic action allows rapid follow-up shots on backyard targets

Cons

• Fires .177 steel BBs and cannot be used in airsoft games or with 6mm plastic BBs
• Airgun design does not run on airsoft green gas canisters

7

Elite Force Glock 17 Gen5 GBB Blowback 6mm BB Pistol

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  8.6
• Brand
  Elite Force

Key specs2

Ambidextrous Handling

Gen5 Frame Profile

Gen5 Frame Profile

Adopts the Gen5 smooth front grip strap without finger grooves and cycles 6mm airsoft BBs via gas blowback.

Pros & cons32

Pros

• Gen5 frame profile eliminates finger grooves to fit a wider range of hand sizes
• Gas blowback cycling replicates authentic slide cycling on every trigger pull
• Standard 6mm caliber operates safely on designated airsoft fields

Cons

• Standard slide does not feature the modular MOS optic cut for micro red dots
• Product specifications omit velocity benchmarks and magazine model details

8

Glock 45 Gen 5 MOS GBB Blowback 6mm BB Gun

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  2.0
• Brand
  Elite Force

Key specs2

Modular Optic Mount

MOS Slide Cut

Crossover Frame Layout

Pairs a full-size frame with a compact slide and factory MOS optic preparation for 6mm airsoft skirmishes.

Pros & cons32

Pros

• Glock 45 layout blends a full-size frame grip with a maneuverable compact slide
• Gen 5 MOS slide cut supports micro red dot optic mounting plates
• Blowback action cycles crisply with standard 6mm airsoft ammunition

Cons

• MOS optic adapter plates and sights are not included in the standard box
• Listing details do not list factory velocity numbers or magazine round capacity

9

Glock 17 Gen 5 MOS GBB Blowback 6mm BB Gun

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  -
• Brand
  Elite Force

Key specs2

Muzzle Velocity

Up to 300 FPS with .20g BBs

Optic Plate Requirement

Mounting micro pistol optics requires the separate MOS plate kit number 2211388 on this green gas Glock 17 Gen5.

Pros & cons52

Pros

• Modular Optics System (MOS) cut accepts micro pistol red dot optics
• Powered by airsoft green gas with compatibility for magazine part 2276347
• Reversible magazine catch accommodates left- and right-handed shooters
• Launches 0.20g airsoft BBs at up to 300 FPS with realistic blowback action
• Includes a 17-round magazine sized for standard Glock 17 duty setups

Cons

• MOS optic plate kit (part number 2211388) is sold separately
• Green gas pressure drops in colder outdoor temperatures

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

Does the Umarex Glock 17 run on green gas or CO2?

It depends on the specific model you select, because Umarex produces blowback replicas across different power plants and calibers. For green gas operation, look strictly for models marked as 6mm BB gas blowback (GBB) pistols, such as the Elite Force Glock 17 Gen4 or Gen5. Airguns labeled for .177 caliber, including the blowback Glock 19X air pistol, shoot steel BBs and run on separate power sources. If you are comparing training tools across different target disciplines, reviewing a realistic CO2 BB gun can help you distinguish steel plinkers from 6mm skirmish sidearms.

Will a Gen4 Glock 17 magazine fit a Gen3 or Gen5 frame?

You must match the exact magazine part number to your specific pistol generation to guarantee proper feeding and valve alignment. For example, magazine part number 2276302 is built for the Glock 17 Gen4 green gas pistol (model 2276300) and provides a 22-round capacity. Meanwhile, optics-ready frames like the Glock 17 Gen 5 MOS list compatibility with magazine part number 2276347. Always check the part number on your spare magazines against your frame model to avoid gas seal leaks or magazine catch binding.

Which Umarex Glock 17 model includes the Modular Optics System for red dots?

The Glock 17 Gen 5 MOS GBB Blowback 6mm pistol comes equipped with Glock's Modular Optics System optic plate mount directly on the slide. This version runs on airsoft green gas, works with magazine part number 2276347, and weighs 0.81 pounds. Standard Gen3 and Gen4 slides have fixed top profiles without optic mounting cuts, so verify that the product name explicitly states Gen 5 MOS before you purchase a red dot sight.

What velocity does a green gas Glock 17 produce with standard airsoft BBs?

Velocity ratings vary by model variant, BB weight, and ambient temperature, so you must verify the exact feet-per-second rating on the manufacturer specification sheet. Green gas pressure fluctuates with weather conditions, which influences slide cycle speed and projectile velocity during rapid fire. If you are setting up gear for structured practice alongside a primary platform like a tactical air rifle, check your local field limits and confirm the factory velocity specifications in the user manual.

Can you fill Umarex Glock magazines with third-party green gas canisters?

Yes, standard green gas canisters feature universal compatibility across all airsoft applications. Options like ZeroR Green Gas come in 13.5-fluid-ounce cans containing 8 ounces of compressed propellant in an 11.8-ounce total weight container. The standard nozzle fits the bottom intake valve on Glock blowback magazines. Invert the canister completely while pressing the nozzle straight into the fill valve to transfer liquid gas cleanly into the reservoir.

How do you avoid buying a .177 steel BB gun instead of a 6mm green gas replica?

Check the caliber and projectile type listed on the product specifications before completing your purchase. Dedicated green gas pistols are designated as 6mm BB airsoft guns, firing smooth plastic spheres from gas-charged magazines. Airguns built for steel BBs are listed as .177 caliber and feature full metal slides with blowback action, but they cannot chamber 6mm airsoft BBs or use green gas magazines. Verifying the 6mm caliber ensures you receive a sidearm compatible with field play and standard duty holsters.