Safariland Model 537 GLS Belt Slide Glock Holster Review

Taking the Safariland Model 537 GLS Belt Slide Glock Holster for a Spin

For anyone who carries a firearm, the holster is as critical as the weapon itself. It’s the interface, the protector, and the access point. I’ve spent over a decade in diverse environments – from dusty workshops and sterile labs to rugged outdoor terrains and tactical field exercises – and I’ve learned that the right gear isn’t just about function; it’s about confidence. My search for a reliable, comfortable concealment holster led me to the Safariland Model 537 GLS Belt Slide Glock Holster. This particular model promised a blend of security and accessibility, driven by Safariland’s known Grip Lock System (GLS).

My specific need arose from a growing desire for a more streamlined concealed carry setup without compromising on security, especially after experiencing a less-than-ideal retention on a previous holster during a training exercise. I wanted something that felt secure when holstered but allowed for a rapid, natural draw. Alternatives I considered included other Kydex-style holsters from different manufacturers, but the reputation of Safariland’s GLS system and the promise of a flexible, body-contouring design caught my eye. My initial impression upon unboxing this Safariland holster was one of practical construction; the materials felt robust, and the design appeared straightforward. It offered an immediate sense of practical utility, a promising start for a piece of gear that’s meant to perform under pressure.

Real-World Testing: Putting Safariland Model 537 GLS Belt Slide Glock Holster to the Test

First Use Experience

My initial testing of the Safariland Model 537 GLS Belt Slide Glock Holster focused on everyday carry scenarios, mimicking various daily activities rather than extreme conditions. I wore it during commutes, while performing light workshop tasks, and during extended periods of sitting and standing. The holster was initially tested with a Glock 19, as it’s a common and versatile firearm.

The primary challenge during this initial phase was the belt fit. Advertised to accommodate 1.5-inch belts, I found that my standard 1.5-inch tactical belts were a tight squeeze, almost to the point of not fitting through the belt loops. This was a noticeable point of friction from the outset. I did manage to test it with a thinner, non-gun-specific 1-inch belt, and while it functioned, the overall stability and security felt compromised, highlighting a potential sizing issue. The GLS retention mechanism, however, engaged smoothly with the firearm, and the release felt surprisingly natural once I understood the required grip.

Extended Use & Reliability

After several weeks of consistent, albeit somewhat limited due to the belt issue, use, the Safariland Model 537 GLS Belt Slide Glock Holster showed some resilience. The flexible holster body did indeed begin to conform slightly to the contours of my waist, enhancing comfort during longer wear periods. The GLS retention system continued to operate reliably, holding the firearm securely without any signs of unintended release.

However, the belt fit issue remained a significant limitation. The difficulty in fully seating my preferred 1.5-inch belts meant the holster never sat as flush or stable as I would have liked. This lack of perfect integration impacted the overall confidence in its stability, especially during dynamic movements like bending or quick transitions. Cleaning the holster was straightforward, requiring only a damp cloth and occasional compressed air to remove debris from the GLS mechanism. Compared to some rigid Kydex holsters that can become brittle over time or softer nylon holsters that might stretch, this model offered a middle ground in terms of durability, but its core functionality was hampered by the belt fit.

Breaking Down the Features of Safariland Model 537 GLS Belt Slide Glock Holster

Specifications

The Safariland Model 537 GLS Belt Slide Glock Holster is designed with concealment and secure retention as its primary goals. It features Safariland’s innovative Grip Lock System (GLS), which is the core of its security. This system automatically locks the firearm in place when holstered.

The GLS retention is disengaged by the user’s middle finger as they acquire a standard shooting grip. This design aims for an intuitive and safer draw. The holster body itself is described as soft and flexible, allowing it to adapt to the wearer’s body shape for improved comfort and a more streamlined profile. It also includes a tension adjustment screw, enabling users to fine-tune the fit and retention of their specific firearm.

Performance & Functionality

In terms of its primary function, securing a firearm, the Safariland Model 537 GLS Belt Slide Glock Holster performs admirably thanks to its GLS mechanism. The auto-locking feature provides a significant layer of security, giving peace of mind that the firearm will not dislodge inadvertently. The release, once mastered, is indeed quite natural; obtaining a proper shooting grip naturally positions the middle finger to deactivate the lock.

However, the advertised 1.5-inch belt compatibility proved to be a significant drawback in my real-world testing. The slots are simply too narrow for most quality 1.5-inch gun belts, severely limiting its practical application for users who rely on such belts for stable carry. This oversight detracts from the otherwise solid performance of the GLS system and the comfortable, conforming nature of the holster body. It functions, but not optimally, and certainly not as intended for robust carry.

Design & Ergonomics

The design of this Safariland holster prioritizes a blend of comfort and security for concealed carry. The flexible holster body is a key ergonomic feature, allowing the holster to mold around the wearer’s hip and waist. This contouring aids in reducing printing, making it more discreet under clothing.

The GLS mechanism, while functional, does add a slight bulk on the exterior of the holster. However, the release method being tied to the shooting grip is ergonomically sound and can promote a consistent draw stroke. The tension adjustment screw is a welcome addition, allowing for personalization of the weapon fit. The belt loops, while problematic for thicker belts, are integrated in a way that keeps the holster relatively close to the body, which is beneficial for concealment.

Durability & Maintenance

Based on initial use, the materials used in the Safariland Model 537 GLS Belt Slide Glock Holster appear durable for its intended purpose of concealed carry. The flexible polymer body seems resistant to cracking and abrasion that might occur from everyday contact. The GLS mechanism is internal and appears well-protected, reducing the likelihood of damage from external impacts.

Maintenance is minimal, which is a plus for any piece of concealed carry gear. Regular cleaning with a damp cloth and ensuring no debris obstructs the GLS system is generally sufficient. If the tension adjustment screw loosens over time, it can be easily tightened with a screwdriver. There are no readily apparent weak points that suggest premature failure, assuming the belt loop issue doesn’t lead to undue stress on the holster body from forcing it onto a belt.

Accessories and Customization Options

The Safariland Model 537 GLS Belt Slide Glock Holster comes as a standalone unit, with no additional accessories included. Its primary customization option lies within the tension adjustment screw, allowing users to dial in the draw resistance to their preference. This feature is crucial for fine-tuning the balance between secure retention and a smooth draw.

While this model doesn’t offer swappable attachments for different carry styles (like paddle or drop-leg platforms), it’s designed to integrate with standard 1.5-inch belts. The compatibility with specific Glock models is clearly defined by the user when purchasing, ensuring a proper fit for their firearm. There are no other significant customization options beyond the tension adjustment.

Pros and Cons of Safariland Model 537 GLS Belt Slide Glock Holster

Who Should Buy Safariland Model 537 GLS Belt Slide Glock Holster?

The Safariland Model 537 GLS Belt Slide Glock Holster is best suited for individuals who prioritize a secure retention system and a comfortable, conforming fit for concealed carry. It is ideal for those who use firearms with compatible models (like certain Glocks) and who may already own thinner, non-gun-specific belts that might fit the narrower slots. If you’re looking for a holster where the Grip Lock System is the primary selling point and you can confirm your belt’s compatibility, this model warrants consideration.

However, users who rely on thick, rigid 1.5-inch gun belts for optimal stability should likely look elsewhere. Anyone who needs a holster that can adapt to different carry methods (e.g., paddle, shoulder, drop-leg) will also find this model too limited. If absolute certainty of belt fit is paramount for your concealed carry setup, I’d suggest verifying exact slot dimensions or exploring other Safariland models with more adjustable or wider belt loops.

Conclusion on Safariland Model 537 GLS Belt Slide Glock Holster

The Safariland Model 537 GLS Belt Slide Glock Holster presents a compelling case for secure concealed carry, primarily due to its excellent Grip Lock System and comfortable, body-molding design. The GLS offers a robust retention that feels both secure and surprisingly intuitive once you’re accustomed to the draw stroke. For its intended purpose, the flexibility of the holster material aids significantly in comfort and discreetness.

However, the significant drawback concerning belt fit cannot be overstated. The inability of many standard 1.5-inch gun belts to properly integrate with the holster’s belt loops undermines its overall utility and stability for a substantial portion of the concealed carry community. This makes the value proposition tricky; while the core technology is sound, the fundamental interface with the user’s belt is compromised.

Ultimately, I would recommend the Safariland Model 537 GLS Belt Slide Glock Holster with a strong caveat: verify your belt’s compatibility before purchasing. If you can confirm that your chosen belt will fit the slots snugly and securely, then this holster offers a secure, comfortable, and effective solution for concealed carry. If not, you might find yourself with a holster that, despite its innovative retention system, doesn’t sit as reliably as you’d need for daily, confident carry.