Fortis Manufacturing

Our aim is to provide "Operator" needed strength with exceptional design and aesthetics at an affordable price.  We are passionate about bringing the best AR15/M16 products to market.  Fortis Manufacturing, Inc. (FMI), utilizes only the highest quality materials available and machining that is second to none. 

Every product designed by FMI™ undergoes a strenuous testing and evaluation period with a diverse group of select professionals. Feedback is collected at the end of the testing period and evaluated.  If design changes are warranted, further samples are constructed and sent back out for further testing. It is not until all issues have been resolved and all feedback has been addressed that a product is considered ready for production.

It is this philosophy that ensures each product will meet or exceed the heavy demands of the professionals who use them.

All parts minus (morale patches) are made in America.

  • Fortis Billet Upper Receiver

    Fortis Billet Upper Receiver

    The Fortis Billet Upper is a precision piece, machined from Billet 7075 T6 aluminum. Like our other products, we designed this upper with function as well as form in mind. We shaved off the ounces where we could without sacrificing rigidity or strength...

    $319.99
    Add to Cart
  • Fortis LA Stock

    Fortis LA Stock

    When designing our newest line to our Fortis family of products, we spent a lot of time thinking about the overall design and function of our butt stock. Lightweight? Of course. We helped start the change in the industry with our lightweight designs -...

    $549.99
    Out of stock
  • Fortis REV Free Floating Rail System - 10-Inch

    Fortis REV™ is an extremely lightweight yet robust free floating rail system. When designing the REV™, we didn’t want just another rail system, we wanted a better, lighter, feature rich handguard that was robust and within budget. We’ve managed to reduce...

    $299.99 $279.99
    Add to Cart
  • Fortis SHIFT Short Angled Grip

    Fortis SHIFT Short Angled Grip

    With our newest item to the Fortis family line. We went true to our roots and integrated form with functionality. The new angled grip, the Shift Short is a hybrid of sorts. The shape works as a comfortable hand stop when going with the thumb over method...

    $112.99
    Add to Cart
  • Fortis SHIFT Short Angled Grip MLOK

    Fortis SHIFT Short Angled Grip MLOK

    Our new Shift short angled grip MLOK integrates form with functionality.  The Shift™ short is a hybrid of sorts.  The shape works as a comfortable hand stop when going with the thumb over method.  The grip allows you to handle the weapon with the...

    $99.99
    Out of stock
  • Fortis SHIFT Vertical Grip

    Fortis SHIFT Vertical Grip

    With our newest item to the Fortis family line. We went true to our roots and integrated form with functionality. The new fore-end grip, the Shift is a hybrid of sorts. The shape works as a full-on vertical grip or as a comfortable hand stop when...

    $119.99
    Add to Cart
  • Fortis SHIFT Vertical Grip MLOK

    Fortis SHIFT Vertical Grip MLOK

    Our new Shift fore-end vertical grip MLOK integrates form with functionality.  The hybrid design allows the operator to use as a full-on vertical grip or as a comfortable hand stop when going with the thumb over method.  The grip allows the operator...

    $119.99
    Add to Cart