Zero9 Holsters Model 4005 Double Magazine Case - Duty-Ready Fit

In this review the Zero9 Holsters Model 4005 Double Magazine Case is evaluated for duty use and everyday carry setups. The bottom line: this is a rugged, no-nonsense double magazine carrier built for Glock 9mm and.40 cal double stack magazines, and its biggest reason to buy is simple reliability - a hard Kydex shell and adjustable retention deliver consistent draws and low maintenance compared with softer or leather holders. The review focuses on practical handling, mounting options, and real-world durability for first responders and range users.

Key Features

• Perfect Fit: Molded specifically for Glock 9mm and.40cal double stack magazines so magazines sit securely without excess play.
• Contoured Grip: The contoured form factor gives a predictable hand placement for faster, more confident extraction under stress.
• Multiple Mounting Options: The hole pattern supports setuptek lok for belt carry and molle lok for vests and modular gear, letting users adapt mounting angle and platform.
• Durable Kydex Construction: The hard-shell Kydex resists shifting, won't deform like some leather, and wipes clean for low maintenance after duty use.
• Adjustable Retention: A retention screw lets you fine-tune how tightly magazines are held for smooth draws or firmer retention on the move.
• Professional Design: Designed by active officers, the case emphasizes functional durability and simplicity for public safety use.

Who It's For

This case is best for law enforcement, security professionals, and serious range users who carry Glock 9mm or.40 cal double stack magazines and need a low-maintenance, rugged holder that can mount to belts or MOLLE platforms. The design suits duty rigs where retention consistency and fast access matter.

Users who prefer padded or soft holsters for concealment, or those carrying non-double-stack magazines, should look elsewhere. Also, shooters who need a narrower two-mag spacing for very compact setups may find the twin spacing a bit close or wide depending on their preference.

Pros & Cons

Pros

• Durable Kydex construction resists wear and cleans easily for harsh duty environments.
• Secure, molded fit for Glock 9mm and.40cal double stack magazines reduces unwanted movement.
• Multiple mounting options make it adaptable to belt or MOLLE setups for different duties.
• Adjustable retention allows personalization for draw speed versus hold.

Cons

• Some users report mixed feedback on grip comfort and spacing between magazines, which may not suit every hand or reload style.
• Hard-shell design is less forgiving for concealment compared with soft or padded carriers.

Specifications

Product	Model 4005 Double Magazine Case
Compatible Magazines	Glock 9mm and.40cal double stack
Material	Kydex hard-shell
Mounting Options	Setuptek lok (belt) and Molle lok (vests, modular gear)
Retention	Adjustable retention screw
Designed By	Founded by two full-time police officers

Our Verdict

The Zero9 Model 4005 is a practical, mission-focused double magazine case that offers dependable retention and modular mounting for duty and range use. It represents good value for users who need a low-maintenance, durable Kydex carrier for Glock 9mm and.40cal double stack magazines, though those seeking softer concealment options or specific spacing preferences should check fit before committing.

Frequently Asked Questions

Will this fit non-Glock double stack magazines?
It is molded for Glock 9mm and.40cal double stack magazines; similar double stack mags may fit but verify fit first.

Can I change the mounting angle?
Yes, the hole pattern supports multiple angles and both setuptek lok and molle lok mounting options.

How do I adjust retention?
Use the built-in retention screw to tighten or loosen magazine hold for preferred draw speed and security.