Category Archives: Manufacturer Spotlight

Manufacturer Spotlight – Fortis Manufacturing


Fortis Manufacturing, Inc

Strong, Powerful, Robust.  That is the definition of the Latin word “Fortis” and what Fortis Manufacturing, Inc. strives to achieve in producing innovate and steadfast products.  That sentiment is also included in their motto; “Strength by Design”.


Located in Washington State, Fortis Manufacturing, Inc. (FMI™) is aimed at providing a combination of “Operator” needed strength, exceptional design and aesthetics, while still offering their AR15/M16 product line at an affordable price.  FMI™ ensures that all of their products undergo a strenuous T&E process by real-world professionals prior to the product being considered for full production.  If the product has necessary design changes, further samples are redesigned, constructed, and sent back out for further testing.  The philosophy of FMI™ is to “ensure each product will meet or exceed the heavy demands of the professionals who use them.  FMI™ is proud that all of their manufactured parts are made in the United States of America, with the exception of their creative morale patches.

FMI™ offers a diverse accessory line for the AR15/M16 platforms that provide a practical and functional upgrade to a standard set-up.

Fortis Manufacturing 14 inch REV Rail and RED Muzzle Brake 002-1000
Fortis Manufacturing REV Rail (14″)

The Fortis REV™ series of Free Float Rail Systems,built out of aircraft grade 6061-T6 aluminum and finished with MIL-SPEC Type III hard coat anodization, surely stands out in the crowd.  With its sleek appearance and aggressive appearance, the REV™ is as versatile as it is attractive.  The REV™ is offered in varying lengths (7”, 9”, 12” and 14”) and features (Standard, 9” CAR Cutout and Mid-length FSP Cutout).   For an after-market rail system, the REV™ is one of the lightest options available with the 7” version coming in at 6.7 ounces and the 14” version weighing 11 ounces.  The one-piece body design offers strength and installation on an already installed barrel with standard barrel nut only requires the installation of four screws with an Allen wrench.  Some of the key features of the REV™ include KeyMod attachment points at the 3 and 9 o’clock positions, a contiguous top rail, an inside diameter of 1.340”, rotation limited QD sockets, and anti-rotational tabs that fits most MIL-SPEC forged uppers, though some slight modification may be required for some uppers.  Good news for gas piston system users, the REV™ is also piston compatible.  The 14” REV™ is also available in Magpul FDE Cerakote for an additional cost.  For the REV™ 9” CAR Cutout and MID FSP Cutout, if used with a FSP with bayonet lug, the lug will touch the bottom of the internal side of the rail.


Fortis Manufacturing Rail Attachment Point (RAP) 001-1000
Fortis Manufacturing Rail Attachment Point (RAP)

The Fortis RAP™ (Rail Attachment Point), made out of 6061 aluminum and hard coat anodized to a deep black finish, is a great solution for the needed attachment of a QD swivel to any MIL-STD-1913 Picatinny Rail, while offering an compact footprint that is barely noticeable.  The RAP™ QD socket is rotation limited and is offered either with or without a QD sling swivel.


Fortis Manufacturing Multi-Point Sling Adapter (MPSA) 001_1000

The Fortis MPSA™ (Multi-Point Sling Adapter) End Plate, built out of 6061 Aluminum and anodized in MIL-SPEC black, features both a quick detach socket and 1.25” loop sling attachment points.  It was designed to be used with carbine style buffer tubes for both the AR15 and .308 platforms and is offered in right hand, left hand, and ambidextrous models.  The machined edges of the MPSA™ have been fully radiused, inside and out, to prevent hot spots and fraying of the attached sling.  If you are looking for an end plate solution with a quick detach option only, FMI™ has you covered with the Fortis QD End Plate, which offers the same features of the MPSA™ minus the loop sling attachment point.


Fortis Manufacturing Low-Profile Gas Block (Photo Courtesy of Fortis Mfg)
Fortis Manufacturing Low-Profile Gas Block (Photo Courtesy of Fortis Mfg)

Looking to add a Low Profile Gas Block?  FMI™ has that too, which is made out of 4140 steel.  The Fortis gas block was designed with today’s match-grade barrels in mind and was built to fit .750 gas seats and attaches to the barrel with two set screws.  The gas block comes included with a roll pin for attachment of the gas tube.  If you prefer to have your gas block pinned in place, Fortis has options for pinned and not.


Fortis Manufacturing Aimpoint T1 Mount 001-1000

When you hear the term “F1” you may think of a fast, high-end, sleek race car.   FMI™ has brought the term into the firearms industry with the Fortis F1™ Optics Mount.  Instead of fiberglass, the F1™ is built out of one piece billet aircraft grade 6061-T6 aluminum and finished with MIL-SPEC Type III hard coat anodization. Originally designed as an after-market option for the popular Aimpoint Micro H-1 and T-1 red dot sights, it is also an excellent option for the Vortex Optics SPARC.  Attaching to any MIL-STD-1913 Picatinny Rail with two slotted machine screws, the F1™ is most likely the lightest option available, weighing in at a mere 1.1 ounces.  The sleek angled appearance matches up nicely with the REV™ series of rails.  As for the co-witness with the Back-Up Iron Sights, the F1™ provides a lower 1/3 co-witness for a larger field of view.


Fortis Manufacturing Rapid Engagement Device (RED)

The Fortis RED™, which is built out of 303 Stainless Steel for a 1/2×28 thread per inch (TPI), 5.56mm barrel, is 2.194 inches long and comes with an included crush washer.  The RED™ was tested and evaluated by the LE/MIL community, then put to the test by the 3 gun community.  Tested under fully automatic conditions, the RED™ has had favorable reviews.


Fortis Manufacturing Forged Upper Receiver

The Fortis Forged MIL-SPEC Stripped Upper Receiver is machined from 7075-T6 aluminum and is built to MIL-SPEC standards.  The Fortis Upper features M4 feed ramps, MIL-STD-1913 Picatinny rail flat top, engraved “T” numbers, is finished in MIL-SPEC Type III hard coat anodization, and has a dry lube coating to reduce wear and added lubricity.  The upper does not come with a dust cover and forward assist assembly.


Fortis Manufacturing .308 Rail 005-1000
Fortis Manufacturing SWITCH™ .308 Rail System


Fortis Manufacturing .308 Rail 010-1000
Fortis Manufacturing SWITCH™ .308 Rail System

Designed for the DPMS High-Profile .308 Platform, the Fortis Mfg  SWITCH™ .308 Rail System is a lightweight and robust free-float rail system that is sure to please.  The beauty of this rail is the ability to install and remove without the need of tools and can be quickly swapped out depending on the mission type.  The SWITCH™ offers a QD Sling Mount and Key-Mod capability on the sides and bottom and a full length picatinny rail section on the top.

Fortis Mfg Hammer Charging Handles in Black Teflon (L) and Nickelene™ (R)

Available in Black Teflon and Nickelene™ finishes, the Fortis Mfg Hammer Charging Handle is one of the “slickest” charging handles I have come across.  Not only is it slick-looking, but the finishes adorning these charging handles offer one of the smoothest bolt racks I have experienced.  The aggressive serration surface offers extremely positive control as well as aesthetic appeal.


Fortis Manufacturing SHIFT Fore-Grip – Picatinny
Fortis Manufacturing SHIFT Short Angled Grip – Picatinny

Fortis Manufacturing SHIFT Fore-Grip - KeyMod

Fortis Manufacturing SHIFT Fore-Grip – KeyMod

Fortis Manufacturing SHIFT Short Angled Grip KeyMod 003-1000
Fortis Manufacturing SHIFT Short Angled Grip – KeyMod

Available for both picatinny and KeyMod rails, the Fortis Mfg SHIFT series of fore-grips come in both a standard length and short angled version.  As the name SHIFT implies, the shooter has various options to “shift” the position of their hand to where it is most ergonomically proper depending on the shooters current shooting position.  All versions of the SHIFT allow for great control of the AR-platforms and is completely a personal preference on which model is best.

For more information, find Fortis Manufacturing, Inc. on the internet at: