How to Choose the Right Holster for Glock 17/19 Gen 2-6 with SureFire X300
By Shop Tactical Gear & Holsters丨Guerrilla Tactical | Published: 2026-08-08
Category: Buying Guides
Discover how to select the perfect light-bearing holster for your Glock 17/19 with SureFire X300. We cover compatibility, retention, comfort, and top picks.
If you carry a Glock 17 or 19 with a SureFire X300 weapon light, you already know that finding a compatible holster is a whole different ballgame. Standard holsters won't fit a pistol with a light attached, and choosing the wrong one can mean poor retention, uncomfortable carry, or even a safety hazard. In this guide, we'll walk you through the key factors to consider when selecting a holster for your Glock 17/19 with the SureFire X300, so you can carry confidently and comfortably.
We'll cover everything from compatibility across generations (Gen 2 through Gen 6) to retention mechanisms, materials, and carry styles. Whether you're looking for an IWB holster for concealed carry or an OWB holster for duty or range use, we've got you covered. By the end, you'll know exactly what to look for and why the right light-bearing holster is a crucial investment.
Why a Standard Holster Won't Work with a SureFire X300
The SureFire X300 is a full-size weapon light that extends beyond the muzzle of your Glock. This added length and bulk mean that a holster molded for a bare pistol won't accommodate the light. The holster must have an open or molded channel that accepts the light body, allowing the pistol to seat fully and lock in place. Without this, the holster may not retain the gun securely, and you risk the firearm shifting or even falling out.
Moreover, the light adds width and changes the trigger guard profile, so a standard holster might not engage the retention mechanism correctly. Light-bearing holsters are specifically designed to use the light itself as the primary retention point, which is actually more secure and consistent than relying on the trigger guard alone. This is why you need a dedicated holster for your Glock 17/19 with X300.
- Light-bearing holsters use the light body for retention, not the trigger guard.
- An open-ended muzzle allows the X300 to protrude, ensuring proper fit.
- A dedicated holster ensures a secure fit across all generations (Gen 2-6).
Key Factors to Consider When Choosing a Light-Bearing Holster
When selecting a holster for your Glock 17/19 with SureFire X300, you need to evaluate several critical factors. First, compatibility: ensure the holster is explicitly designed for your specific Glock model and the SureFire X300 (including the X300U and X300T variants). Many holsters are molded for a specific light, so double-check the product description.
Second, retention: look for adjustable retention, which allows you to fine-tune how tightly the holster holds your pistol. Passive retention (friction) is common in Kydex holsters, while active retention (like thumb breaks or hoods) adds an extra layer of security. For concealed carry, passive retention with a positive 'click' is often preferred; for duty or open carry, active retention may be better.
Third, material: Kydex is the most popular choice for light-bearing holsters because it holds its shape, provides a consistent draw, and is resistant to moisture and sweat. Leather and hybrid holsters can be more comfortable but may not offer the same level of retention or durability with a light attached. Consider your environment and how you'll use the holster.
- Compatibility: Check for your Glock generation (2-6) and X300 model.
- Retention: Adjustable passive retention is ideal for IWB; active retention for OWB duty use.
- Material: Kydex offers durability and a crisp draw; leather is more comfortable but less rigid.
IWB vs. OWB: Which Carry Style Works Best with a Light?
The SureFire X300 adds significant length to your Glock, which can affect comfort and concealability. For IWB (inside the waistband) carry, you'll need a holster with a claw or wing to help tuck the grip closer to your body, and you may need to adjust your carry position. Appendix carry (AIWB) is popular with light-bearing setups because it distributes the weight well and allows a natural draw, but you'll need a holster with a wedge or pillow for comfort.
OWB (outside the waistband) holsters are more comfortable for all-day wear and are common for duty or open carry. They allow for a smoother draw and easier reholstering, but they require a cover garment if you need to conceal. For a Glock 17/19 with X300, OWB holsters often come with a belt attachment or paddle, and you can choose between a straight drop or a slight cant.
Ultimately, the best carry style depends on your body type, clothing, and daily activities. Many shooters prefer appendix IWB for concealed carry with a light, while others opt for OWB for duty or competition. Consider trying both to see what feels most comfortable and accessible.
- AIWB holsters with a claw help conceal a light-bearing Glock.
- OWB holsters are more comfortable for long hours and allow a faster draw.
- A wedge or pillow on an AIWB holster reduces pressure on the leg.
Top Recommendations for Glock 17/19 with SureFire X300
When you're ready to purchase, look for holsters from reputable manufacturers that specialize in light-bearing designs. One excellent option is the Quick Ship - The Rig - Light Compatible from Guerrilla Tactical. This OWB holster is designed to fit Glock 17/19 with a SureFire X300 and features adjustable retention, a low-profile design, and a comfortable belt attachment. It's a solid choice for range use or open carry.
For those who prefer an IWB option, the The Big Rig - Light Compatible is another great choice. This holster is built for comfort and concealability, with a claw that helps tuck the grip and a design that accommodates the X300. It's ideal for appendix carry or strong-side IWB.
If you're looking for a more minimalist setup, you might consider a Modwing Light Bearing holster, which is a modular system that allows you to adjust the ride height and cant. This versatility makes it a favorite among shooters who want to customize their carry. Pair it with a Mod Wing Replacement Hardware Pack to fine-tune the fit.
- Quick Ship - The Rig: OWB, adjustable retention, ideal for duty or range.
- The Big Rig: IWB with claw, great for concealed carry.
- Modwing Light Bearing: Modular system for customization.
Practical Tips for Using a Light-Bearing Holster
Once you've chosen your holster, there are a few tips to ensure safe and effective use. First, practice drawing and reholstering with an unloaded gun to build muscle memory. The added length of the X300 can change your draw stroke, so it's important to train regularly. Second, check the retention regularly and adjust as needed, especially after a break-in period.
Third, ensure your holster is compatible with your belt. A sturdy gun belt is essential for IWB and OWB carry, as it distributes the weight and keeps the holster in place. Finally, clean your holster periodically to remove dust and debris that can affect retention. With proper care, a quality light-bearing holster will serve you well for years.
- Practice draws with an unloaded firearm to get used to the extra length.
- Adjust retention after the first few weeks of use.
- Use a reinforced belt to support the weight of a light-bearing setup.
Choosing the right holster for your Glock 17/19 with SureFire X300 is essential for safety, comfort, and performance. By focusing on compatibility, retention, material, and carry style, you can find a holster that meets your needs. Whether you opt for an OWB rig like the Quick Ship - The Rig or an IWB option like The Big Rig, make sure it's designed specifically for your setup. For a reliable and customizable solution, check out the Modwing Light Bearing holster and explore the rest of Guerrilla Tactical's selection to find your perfect match.



