Great news for anyone picking up their first carry pistol – there’s now even more variety in the world of modular holsters! GRITR’s OMNI IWB/OWB holster has hit the market, and it’s packed with features that set it apart from the competition. Let’s dive in and see what makes this design stand out!
Features & Build of GRITR OMNI IWB/OWB Holster
Material & Durability
What makes the OMNI special starts with materials. While many competitors use thinner .080-inch Kydex that may flex under stress, the OMNI is built with .093-inch American-made Kydex for added durability and longevity. While it’s not as thick as the .125-inch Kydex found in true duty-grade holsters like Safariland, the extra thickness over standard civilian-grade holsters makes a noticeable difference in performance and lifespan.
Retention & Adjustment
Then, the retention system. Many modular IWB/OWB holsters use a single adjustment point below the trigger guard. This is adequate for basic retention but doesn’t allow much fine-tuning. In contrast, the OMNI features two retention points: the standard position below the trigger guard + an additional point right next to the trigger guard. This allows you to dial in exactly the draw resistance you want, whether you’re running drills at the range or carrying all day in street clothes.
Modularity & Carry Options
GRITR OMNI holster was designed to handle IWB, OWB and appendix carry. To achieve minimal printing, AIWB holsters generally use attachments – wedges or claws – that push and angle the gun inward. The OMNI uses the claw, but it’s not a typical fixed one. It’s stackable, meaning it can be adjusted for height or removed entirely when switching to OWB carry.
To enhance concealed carry comfort even further, the OMNI holster features 0–15° cant and multi-slot ride-height windows that allow fine-tailoring for body shape and clothing.
It’s also great that the OMNI ships with everything you need to configure it for different carry positions. In the box, you’ll find the Kydex shell that suits your gun model, tuckable IWB/AIWB over-hook hardware, offset OWB belt loop hardware, and complete stackable claw system. No “starter kit” upselling, no additional purchases required to unlock basic functionality.
True Ambidextrous Design
What’s also great about GRITR OMNI is its true ambi design. The mounting holes are perfectly symmetrical, and the included hardware supports both right and left-handed configurations.
Converting from right to left-handed carry takes about 90 seconds with a basic Phillips head screwdriver. No special tools, no proprietary hardware, no searching for left-handed accessories. The retention adjustments work identically regardless of orientation, while the claw maintains full functionality when flipped. For mixed-handed households or instructors who work with diverse students, this flexibility is invaluable.
QLS and RTI Compatibility
Here’s where the OMNI transcends typical concealment holsters and enters professional territory. The shell comes pre-drilled for both Safariland Quick Locking System (QLS) and G-Code Rapid Transition Interface (RTI) mounts. These are the quick-disconnect standards used by military and law enforcement worldwide, and having both patterns machined into the holster opens up possibilities that most civilian rigs can’t match.
Even if you’re not in law enforcement or doing tactical training, you can still make use of these QD systems to configure the holster as a nightstand holster, vehicle carry rig, or a chest/backpack holster to keep a gun at hand when hunting or hiking.
Long story short, with the QLS/RTI compatibility, the OMNI becomes a true crossover holster that follows you seamlessly between contexts.
Open Muzzle Cut and Optic Cut
The OMNI is built to accommodate modern pistol upgrades. Its open-bottom design and generous optic cut support threaded barrels, compensators, and most red dot sights, including popular models like the Trijicon RMR and Holosun 507C. This ensures the holster remains compatible as your pistol setup evolves, saving you from having to buy new holsters every time you make an upgrade.
GRITR OMNI IWB/OWB Ambidextrous Kydex Gun Holster
$64.99
Price accurate at time of writing
Fits:
- Glock Models w/ TLR-1
- Standard Glock 9mm
- Canik METE MC9 Series
- Canik TP/METE/Rival
- Railed/Non-Railed 1911
- Sig P365-XMACRO w/ TLR7-A
- Sig Sauer P365-XMACRO
- Sig Sauer P365XL
- Sig Sauer P320
- S&W Bodyguard 2.0
- S&W M&P9
- Springfield Hellcat/Pro
- Staccato C/CS/P/XL/XC
- Walther PDP
Features:
- A modular holster system offering multiple carry position options
- True ambidextrous design
- Compatible with most aftermarket belt attachments including the QLS & RTI systems
- Stackable claw system rotates your grip inward to eliminate printing
- Accommodates red dots, threaded barrels and compensators
How GRITR OMNI Holster Stacks Against the Other Modular Holsters
The modular holster market is full of options, each with unique strengths, but what truly sets the GRITR OMNI apart is its balanced approach to modularity and usability. While other holsters chase maximum configurability or force compromises, the OMNI delivers practical features designed to meet the needs of real carriers.
Take Alien Gear ShapeShift, for example. It offers impressive versatility with multiple configurations but is somewhat bulky which proves challenging for smaller-framed users or anyone prioritizing discreet concealment. The GRITR OMNI, in contrast, maintains a slimmer profile while offering IWB, OWB, and AIWB options without sacrificing comfort or concealability.
Another example is the BladeTech Total Eclipse 2.0. This modular IWB/OWB holster was designed to switch configurations quick with its Mod-Lok system, eliminating the need for tools. However, it lacks an integrated claw or similar features that enhance AIWB concealment, resulting in less effective grip-tuck for everyday carry. The OMNI includes a stackable concealment claw that can be adjusted or removed.
Finally, We The People’s Freedom Platform impresses with over 2,500 configurations, yet this variety can overwhelm users who prefer straightforward, reliable options. The OMNI hits the sweet spot, offering just the right amount of modularity without unnecessary complexity. Its adjustable retention system, optic cut, and open-muzzle design make it versatile enough to adapt to modern firearm accessories like threaded barrels or red dot sights while staying easy to configure.
The GRITR OMNI doesn’t just tick boxes for features; it solves real problems through engineering excellence and simplifying the user experience for serious carriers.
![GRITR OMNI: A New IWB/OWB Modular Holster [Review]](https://blog.gritroutdoors.com/wp-content/uploads/2025/07/gritr-omni-holster-6-1024x1024.jpg "GRITR OMNI: A New IWB/OWB Modular Holster [Review] 7")
Real-World Performance Testing
I carried the OMNI system daily for three months, rotating between IWB strong side, appendix, and OWB configurations. The modularity actually worked as designed, with configuration changes taking less than two minutes once you understand the system.
The mid-height sweat guard provides protection without interfering with grip acquisition or creating pressure points during extended sitting. The guard height works well with different pistol sizes while maintaining consistent protection regardless of carry position.
Out-of-box retention is firm. Still, for optimal long-term retention, apply blue threadlocker on adjustment screws after initial tuning; otherwise, retention may loosen after a few hundred draws.
The Kydex shows minimal wear after months of daily carry, and the attachment hardware shows no signs of wear or loosening with regular use.
The lifetime warranty provides additional confidence, though the construction quality suggests you’re unlikely to need it.
Something to Keep in Mind
No design is without its flaws, and the OMNI has a few limitations worth noting. Light-bearing versions remain limited to specific combinations, which restricts options for users running weapon-mounted lights. GRITR plans to expand their light-bearing lineup, but current availability doesn’t match the broad compatibility of their standard models.
As with most Kydex holsters, the OMNI performs best with a proper gun belt. A belt with sufficient stiffness is essential for optimal performance, and while this isn’t unique to GRITR’s design, it’s an important consideration for new carriers who may not yet understand the role a quality belt plays in effective concealed carry.
Also, keep in mind that the dual-clip design can make deep concealment more challenging for extremely athletic or tightly cut clothing.
The Bottom Line
The modular holster concept has matured considerably, but most systems still require significant compromises. GRITR’s OMNI series proves that modularity doesn’t have to mean mediocrity.
The precision engineering, professional mounting compatibility, and thoughtful design details create a system that actually delivers on the modular holster promise. Whether you need versatility for multiple carry positions or want professional-grade mounting options, the OMNI series provides capability that matches or exceeds dedicated alternatives.
