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JAG Arms GM4 Hi Capa

Our Price


Free Shipping on Orders $200 or More ($9.99 for orders under $200)

Fox Airsoft offers a 30 day warranty and return policy.

What's Included?

  • JAG Arms GMX 4.0 
  • Magazine

What you need to play:


  • Full metal slide and mid frame with matte tan finish
  • Injection molded polymer grips provide a superior gripping surface without the additional weight of a full metal frame
  • Integrated 20mm accessory rail is ideal for flashlights or LAMs
  • Ambidextrous thumb safety and functioning beavertail safety
  • Combat style sights
  • Compatible with Tokyo Marui and WE-Tech aftermarket components

Technical Specifications:

  • Model Number: JAG GBB 
  • Muzzle Velocity: 350fps with .20 gram BB's
  • Colors: Black
  • Power Source: Green Gas
  • Magazine: 29 Rd Magazine
  • Internal Parts Compatibility: Tm Spec Hi Capa Parts
  • Barrel Diameter: 6.08mm
  • Barrel Length:  113mm
  • Barrel Thread: 14mm Negative
  • Gun Length: 9in
  • Weight: 1lbs


Q: What materials are used in the construction of the Jag Arms GM4 Hi-Capa's slide and frame, and what is their finish?

A: The slide and mid-frame of the Jag Arms GM4 Hi-Capa are made entirely of metal, providing robustness and durability. These components are finished with a matte tan coating, giving the gun a sleek and professional appearance.

Q: How do the grips of the Jag Arms GM4 Hi-Capa enhance its usability?

A: The Jag Arms GM4 Hi-Capa is equipped with injection molded polymer grips. These grips not only offer a superior gripping surface for improved control but also keep the gun lightweight compared to full metal grips. This enhances usability without compromising on stability.

Q: What accessory options does the Jag Arms GM4 Hi-Capa offer?

A: This model includes an integrated 20mm accessory rail. It's designed for attaching accessories like flashlights or Laser Aiming Modules (LAMs), allowing for greater versatility and adaptability in various shooting conditions.

Q: Can you explain the safety features of the Jag Arms GM4 Hi-Capa?

A: The Jag Arms GM4 Hi-Capa is designed with multiple safety features, including an ambidextrous thumb safety and a functional beavertail safety. These features contribute to the prevention of accidental discharge and promote safer handling.

Q: What type of sights does the Jag Arms GM4 Hi-Capa have?

A: The Jag Arms GM4 Hi-Capa is equipped with combat style sights. These sights are designed for quick and efficient target acquisition, making them suitable for dynamic shooting scenarios.

Q: What components are compatible with the Jag Arms GM4 Hi-Capa and what does the package include?

A: The Jag Arms GM4 Hi-Capa is compatible with aftermarket components from Tokyo Marui and WE-Tech, allowing for extensive customization. The package comes with the gun and a magazine. The gun operates on a Gas Blowback system, has an adjustable hop-up, and uses Green Gas. It supports semi-automatic firing and has a safety mode.

About the JAG Arms GM4 Hi Capa

The Jag Arms GM4 Hi-Capa, a modern and efficient airsoft pistol, stands out for its robust construction and versatile features. The heart of this model lies in its durable build; both the slide and the mid-frame are constructed entirely of metal, ensuring longevity and reliability under various conditions. This sturdiness is complemented by a matte tan finish, which not only adds to its aesthetic appeal but also provides an additional layer of protection against wear and tear.

Ergonomics and handling are vital for any airsoft enthusiast, and the GM4 Hi-Capa excels in this area through its use of injection molded polymer grips. These grips are meticulously designed to offer a superior gripping surface, enhancing the shooter's control and precision. This is achieved without adding unnecessary weight to the gun, a crucial factor in maintaining agility and comfort during extended use. Furthermore, the integrated 20mm accessory rail opens up a world of possibilities, allowing users to equip the pistol with a variety of attachments such as flashlights or laser aiming modules, thus adapting the gun for different tactical scenarios.

Safety is paramount in the design of the Jag Arms GM4 Hi-Capa. It incorporates an ambidextrous thumb safety and a functional beavertail safety, features that collectively reduce the risk of accidental discharge and ensure safe operation. The combat style sights equipped on the pistol are another noteworthy feature, tailored for quick and effective target acquisition, a must-have in fast-paced shooting environments.

Compatibility and customization are also key aspects of the GM4 Hi-Capa. This model is compatible with a range of aftermarket components from Tokyo Marui and WE-Tech, offering enthusiasts the flexibility to tailor the gun to their specific preferences and needs. The package includes the gun itself and a magazine, providing the essentials to get started. The gun operates on a Gas Blowback system, uses Green Gas as its power source, and features an adjustable hop-up for improved accuracy. With the ability to fire in semi-automatic mode and a dedicated safety mode, the Jag Arms GM4 Hi-Capa is a versatile and reliable choice for airsoft players seeking a high-quality, adaptable sidearm.




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