
Don’t get caught lacking
Carrying a concealed firearm is about more than just having a weapon on hand—it’s about being fully prepared for any situation. One of the most overlooked aspects of concealed carry readiness is carrying a spare magazine. A reliable mag carrier ensures that you have extra ammunition accessible when you need it most, whether for self-defense or in the event of a malfunction.
That being said, our team of experts at Guerrilla Tactical is going to explore the importance of extra mag carriers and recommend two top-tier options from our selection: The One Shot and the Side by Side (SBS) holster system.
Why Carry a Spare Magazine?

Many people think that carrying a spare magazine with their everyday carry (EDC) weapon is “overkill”, or “unnecessary”. As a wise man once said, it is better to have it and not need it, than need it and not have it, and there are plenty of different scenarios where you may need it.
The world we live in today is filled with uncertainty and people find themselves in treacherous situations that they never would have imagined being in. That said, it is always good to be prepared.
Let’s take a look at a few reasons why a spare magazine is a good idea.
1. Malfunctions Happen
Even the most reliable firearms can experience malfunctions, such as a failure to feed, double feeds, or magazine-related stoppages. In a high-stress situation, having a spare magazine allows you to quickly swap out a faulty one and stay in the fight.
2. Increased Firepower
Many concealed carry firearms have limited magazine capacities, especially compact and subcompact models like a Sig P365. A spare mag provides additional rounds, ensuring you’re not caught off guard if multiple threats arise or if you need to engage for an extended period.
3. Faster Reloads
A mag carrier allows for smooth and efficient reloads, keeping your extra magazine in a consistent, easy-to-reach position. This can mean the difference between a successful defense and running dry at the worst possible moment.
Choosing the Right Mag Carrier
When selecting a mag carrier, factors like retention, accessibility, comfort, and versatility are crucial. Guerrilla Tactical offers two excellent solutions that cater to different carrying preferences.
The One Shot – Guerrilla Tactical’s Most Versatile Mag Carrier

Introducing The One Shot, a mag carrier designed for concealment, versatility, and ease of use. Designed for concealed carry, this mag carrier fits right inside of your waistband and cannot be seen, so no one will know what you’ve got.
Key Features:
- Adjustable Mag Retention Device (MRD): Allows you to fine-tune the retention with an Allen key (not included), ensuring a perfect fit for nearly any magazine within the selected caliber range.
- IWB & OWB Compatible: Thanks to a custom hole pattern, users can easily switch between IWB and OWB carry based on their needs.
- Ambidextrous Design: Suitable for both left-handed and right-handed shooters.
- Tek Lok & Battle Belt Setup: When using Tek Loks, The One Shot can be canted for a more ergonomic draw.
- Durable Construction: Made from rugged .080 molded Kydex for long-lasting performance.
- Multiple Attachment Options: Choose from a standard IWB clip, Molle Lok, or Tek Lok attachment.
- Magazine Compatibility: Available in double stack 9/40 caliber, single stack 9/40 caliber, double stack .45 caliber, and P365/G43/Hellcat magazine types.
The Side by Side (SBS) – A Dedicated Appendix Carry Solution

For those who prefer appendix carry, the Guerrilla Tactical Side by Side (SBS) holster is an all-in-one solution. Featuring an integrated mag carrier, the SBS allows you to carry both your firearm and a spare magazine in a compact, efficient setup.
Key Features:
- Built-in Mag Carrier: Keeps your spare magazine readily accessible while maintaining a sleek, minimal footprint.
- Adjustable Ride Height: Equipped with two 5-hole straight clips that allow for tucked-in shirts and height customization.
- Enhanced Concealment: A custom claw attachment helps minimize printing, keeping your setup discreet.
- Smooth Re-Holstering: The funneled opening ensures a seamless “no-look” re-holster.
- Optic & Threaded Barrel Ready: Designed to accommodate firearms equipped with RMR/red dot optics and suppressor-height sights. If you run a compensator, mention the brand in the order notes for proper fitment.
- Upgrade Option: Add Discreet Carry Concepts 1.75” clips for enhanced comfort and concealability.
Final Thoughts
Carrying a spare magazine is a critical aspect of concealed carry preparedness. Whether you prefer a dedicated mag carrier like The One Shot or an all-in-one appendix carry solution like the Side by Side (SBS), Guerrilla Tactical has you covered. These high-quality, Kydex-crafted carriers provide the retention, accessibility, and durability needed to ensure you’re always ready for any situation.
Invest in a top-tier mag carrier today and carry with confidence, knowing you have the extra firepower you may need when it matters most.
Be sure to check out Guerrilla Tactical on Instagram and Youtube!