When it comes to magazine and grenade retention, reliability and speed are everything. The Deadly Customs Fortis Retention Flaps (FRF) is designed from the ground up to give you the perfect balance between security, flexibility, and accessibility. Whether you’re running a pistol, rifle, DMR, or 40mm/50mm launcher platform, our laser cut FRF offers a universal fit across our entire Fortis range — from placards to the 2+M4 setup, all the way to a stand-alone Fortis M4 carrier.

Constructed from military-grade 1500D Cordura® nylon and precision laser-cut Velcro®, the Deadly Customs Fortis Retention Flaps provides a rugged, dependable solution that ensures your loadout stays locked in place. With a unique laser-cut stretch pattern, these flaps naturally conform to the shape of your magazines, grenades, or accessories, eliminating unwanted shifting while breaking up unnatural outlines. The result? A system that blends durability with versatility, giving you confidence in every movement.

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Built for Performance Under Pressure

In high-stress environments — whether tactical training, live duty, or competitive shooting — your gear should never hold you back. The FRF is engineered to:

•Lock in magazines or grenades securely while still allowing fast, intuitive access.

•Conform to irregular shapes thanks to its flexible pattern design.

•Prevent unnecessary movement with edge-gripping geometry.

•Resist wear and tear with the strength of 1500D Cordura, trusted by military and law enforcement worldwide.

Unlike traditional pouches or simple Velcro straps, the FRF is designed for repeat reliability. Even after thousands of pulls, the material retains its strength, stretch, and grip, ensuring your gear stays mission-ready at all times.

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Adaptable Across Multiple Platforms

One of the biggest advantages of the Deadly Customs Fortis Retention Flaps is its cross-compatibility.

•Pistol & 40mm FRF: Designed specifically for handgun magazines and 40mm grenades, these units fit perfectly with their dedicated Fortis carriers.

•Rifle, DMR, and 50mm+ FRF: Built to handle larger calibers and extended magazines, these provide superior retention for extended missions.

From our testing, the Deadly Customs Fortis Retention Flaps isn’t limited to just Fortis gear. Because it attaches with Velcro, it’s compatible with most other magazine carriers that feature loop Velcro on the inside or front of the carrier. This means you can integrate FRF into an existing setup without needing a full overhaul.

Each FRF is adjustable for depth, so whether you’re carrying shorter pistol mags or taller grenades, you can dial in the perfect fit. This customization ensures a consistent draw stroke and prevents overexposure of sensitive gear.

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Materials That Make the Difference

The choice of 1500D Cordura® isn’t accidental. This fabric is known for:

•Extreme abrasion resistance – built to withstand rough terrain, urban environments, and field abuse.

•Water resistance – keeping gear dry in adverse conditions.

•Color stability – preventing premature fading in sunlight or after heavy use.

•Structural integrity – even under heavy loads.

Paired with laser-cut Velcro®, the FRF provides a clean, professional look with no frayed edges. The laser cutting process ensures precision and consistency across every piece, resulting in a superior product you can trust in critical situations.

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Available Colors & Configurations

The FRF comes in a range of professional-grade camouflage and solid color options to match your loadout:

•MultiCam® – the industry standard for multi-environment camouflage.

•MultiCam Black™ – perfect for law enforcement or night operations.

•Ranger Green – a balanced color suited for woodland or transitional terrain.

•Coyote Brown – trusted by military operators in desert and arid climates.

•Black – sleek, tactical, and professional.

Available in sets of 1, 2, or 3, you can build out your system according to mission requirements. Whether you’re running a minimal lightweight setup or a fully equipped loadout, the FRF scales with your needs.

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Why Choose the Fortis FRF Over Competitors?

There are plenty of magazine retention systems on the market — but none quite like the FRF. Here’s why our customers choose Fortis:

•Innovative design: Our laser-cut stretch pattern isn’t just cosmetic; it enhances grip, flexibility, and overall function.

•Universal fitment: Works seamlessly across the entire Fortis line and most Velcro-compatible carriers.

•Battle-tested durability: Constructed from Cordura® used by professional military units worldwide.

•Lightweight and low-profile: Adds security without bulk or snag hazards.

•Customizable depth adjustment: Adapt your carrier to any mission, magazine type, or grenade size.

With the FRF, you’re not just buying another pouch flap — you’re investing in gear that adapts to you.

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Trusted by Professionals, Built for Everyone

The Fortis FRF was designed with military and law enforcement applications in mind but is equally suited for:

•Airsoft and milsim players seeking authentic, durable loadouts.

•Competition shooters needing fast, repeatable reloads.

•Tactical trainers looking for dependable gear that lasts through courses.

•Prepared civilians building reliable home-defense or range setups.

No matter your field, the FRF ensures your magazines and grenades stay secure until you need them — and only then.

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Order Your Fortis FRF Today

When performance matters, every detail counts. The Fortis Range Flap Retention System (FRF) combines strength, adaptability, and precision design into one streamlined solution. Available in multiple colors, sizes, and configurations, the FRF is the ultimate upgrade for anyone who demands more from their gear.

Order today and experience the difference of true retention technology.