6 Umarex Glock 17 Gen 3 Co2 Air Pistol of 2026 For Realistic Training

1

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

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• ARS Mark

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  8.4
• Brand
  Umarex

Key specs2

Ammunition and Power

.177 Steel BBs at up to 320 fps via 12g CO2

Holster Compatibility

The 1-pound frame and metal slide match authentic Glock dimensions, fitting most aftermarket duty holsters for realistic draw and presentation drills.

Pros & cons53

Pros

• Realistic slide blowback action mimics authentic handling during target practice
• Drop-out metal magazine holds 18 steel BBs for realistic reload drills
• Matches standard Glock 17 dimensions to fit most aftermarket duty holsters
• Officially licensed Glock markings with a full metal slide and authentic controls
• Shoots .177 caliber steel BBs at velocities up to 320 fps

Cons

• Gen4 frame styling rather than the requested Gen 3 grip configuration
• CO2 12-gram cartridges are not included with the pistol
• Steel BB smoothbore design cannot fire .177 lead pellets

2

American Safety Trainer - (Compatible with Glock 17 Gen 3)

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• ARS Mark

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  7.8
• Brand
  Holstex

Key specs2

Training Purpose

Solid polymer inert trainer built exclusively for safe holster retention drills, weapon retention practice, and gear fitting without any firing capability.

Glock Generation Match

Glock 17 Gen 3 holster fit

Pros & cons32

Pros

• Molded specifically to match Glock 17 Gen 3 holster dimensions
• High-visibility blaze orange color clearly signals an inert training aid
• Solid polymer construction manufactured in the USA prevents wear during holster draws

Cons

• Completely non-functional inert mold that cannot chamber or fire BBs
• Lacks moving slide action, trigger pull mechanics, and removable magazine parts

3

Elite Force 20-Shot Airsoft Magazine for Glock 17 Gen3 (GHK)

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• ARS Mark

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  9.6
• Brand
  Elite Force

Key specs2

Platform Compatibility

Engineered specifically for GHK Glock 17 Gen3 airsoft systems. This magazine will not chamber or feed into .177 caliber steel BB air pistols.

Magazine Capacity

20 rounds (6mm airsoft)

Pros & cons32

Pros

• Designed specifically for GHK Glock 17 Gen3 airsoft platforms
• Holds up to 20 rounds for extended airsoft training sessions
• Provides authentic magazine dimensions for tactical reload practice on compatible airsoft frames

Cons

• Incompatible with .177 caliber steel BB air pistols
• Built strictly for 6mm GHK airsoft systems rather than standard CO2 airguns

4

Umarex ReadyAIR Gen 2 Portable High Pressure Air Compressor Pump

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• ARS Mark

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  8.6
• Brand
  Umarex

Key specs1

Powerplant Application

Designed exclusively for high-pressure pre-charged pneumatic (PCP) air rifles and pistols. It has no connection or utility for 12-gram CO2 airguns.

Pros & cons32

Pros

• Portable high-pressure electric compressor for recharging PCP air tanks
• Eliminates the need for manual hand pumps on pre-charged pneumatic systems
• Umarex design built specifically to fill high-pressure PCP airguns and air rifles

Cons

• Completely incompatible with 12-gram CO2-powered air pistols
• Serves pre-charged pneumatic PCP reservoirs rather than disposable CO2 cartridges

5

CO2 Cartridges Storage Case Compatible with Crosman, Umarexss, Air Gun

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  8.1
• Brand
  YUMTIM

Key specs1

Gear Storage

Organizes 12-gram CO2 powerlets and 4.5mm BB containers in one dedicated protective bag for transport to the range.

Pros & cons32

Pros

• Protective storage bag organizes loose 12-gram CO2 cartridges and 4.5mm BBs
• Compatible with standard Crosman and Umarex CO2 cylinders and ammo containers
• Designed for indoor range trips and outdoor field transportation

Cons

• Storage case only with no CO2 cartridges or BB ammunition included
• Does not house full-sized air pistols alongside ammunition supplies

6

Umarex .177 Caliber Pellet Air Gun Rotary Magazine (Pack of

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  9.4
• Brand
  Umarex

Key specs1

Compatibility Check

• Fits Walther CP88, CP99, PPQ, and Lever Action Rifle
• Fits Beretta M 92 FS and Colt 1911 A1 pellet pistols
• Fits HK P30 and Smith & Wesson M&P 45 pellet models
• Does not fit Umarex Glock 17 BB airguns

Pros & cons42

Pros

• Crafted in Germany from solid aluminum for long-term feeding reliability
• Pack of 3 rotary magazines keeps 24 rounds ready for rapid reloads
• Designed specifically for .177 caliber lead pellets across multiple licensed airguns
• Compact 8-shot rotary design fits flush in compatible slide assemblies

Cons

• Incompatible with Glock 17 BB pistols and drop-out stick magazines
• Designed strictly for .177 pellets and cannot feed steel BBs

Last update on 2026-10-12 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Product Advertising API

Does the Glock 17 air pistol fit standard duty holsters?

Yes, replicas designed for Glock training are built to match model-specific holster dimensions. For example, solid polymer trainer guns compatible with the Glock 17 Gen 3 are engineered specifically to fit model-specific holsters. Functional blowback versions, including the 1-pound black Gen4 air pistol measuring 3.25 x 10.5 x 9.75 inches, also match standard duty frame profiles. Slide widths and rail clearances can vary across models, so check your holster retention mechanism against the specific air pistol dimensions before holster practice.

Does this air pistol shoot steel BBs, lead pellets, or airsoft rounds?

The Glock 17 blowback air pistol shoots .177 caliber steel BBs. It is an 18-shot BB gun powered by a 12-gram CO2 cartridge, designed to cycle standard 4.5mm coated BBs rather than lead pellets or airsoft projectiles. Attempting to feed lead pellets into an 18-shot BB magazine will cause jams, while airsoft ammo requires an airsoft-specific chamber. Finding an authentic CO2 BB gun ensures you get realistic slide blowback action matched to .177 steel BBs.

Can you use Umarex 8-shot rotary pellet magazines in this Glock airgun?

No, the 8-shot rotary magazine is not compatible with the Glock 17 BB air pistol. The silver 8-shot rotary magazine is designed strictly for .177 caliber pellet pistols, including the Walther CP88, CP88 Competition, CP99, PPQ, Lever Action Rifle, Beretta M 92 FS, Colt Government Model 1911 A1, and HK P30. The blowback Glock 17 uses an 18-shot drop-out BB magazine instead of rotary clips. Forcing rotary pellet magazines into a blowback BB frame will cause feed failures and can damage internal components.

Will an Elite Force Gen 3 magazine work in a .177 caliber Glock 17 BB air pistol?

No, an Elite Force Gen 3 magazine will not fit or feed in a .177 caliber BB airgun. That 20-shot magazine is engineered strictly for the Glock 17 Gen3 GHK airsoft gun and handles airsoft ammunition rather than steel BBs. A .177 caliber blowback airgun requires an 18-shot BB magazine built for that exact platform. Check the packaging to confirm that any replacement magazine is explicitly rated for .177 caliber steel BBs before ordering.

What power source runs the Glock 17 blowback air pistol?

The Glock 17 BB air pistol is powered by a single 12-gram CO2 cartridge. It does not connect to high-pressure air systems like the Umarex ReadyAIR Gen 2 portable compressor pump, which is intended solely for PCP airguns. To protect your seals and spare supplies, you can store your 12-gram CO2 cartridges and 4.5mm coated BBs in a dedicated protective storage case. Always verify that the CO2 cartridge is seated straight before tightening the piercing screw.

How do you verify you are buying an operational air pistol instead of an inert prop?

Check the product listing for an 18-shot BB capacity, 12-gram CO2 power, and slide blowback action. Solid polymer safety trainer guns compatible with the Glock 17 Gen 3 come in blaze orange and are completely non-functional display pieces without moving firing assemblies. When choosing practice gear in 2026, confirm the description specifies a functional .177 caliber BB air pistol so you get true slide blowback cycling. Shooters who practice tactical transitions also pair handgun drills with a tactical air rifle to maintain consistent handling.