Fierce Firearms MAYHEM FX Semi-Auto Shotgun

Hrachya H
by Hrachya H

Fierce Firearms, a company mostly known for making precision bolt-action rifles, has entered the shotgun market by introducing the Mayhem FX semi-auto shotgun. The company markets this as a hunting shotgun that will allow you to “reach out for waterfowl at longer range”. Let’s see what features are offered in this new Fierce Firearms shotgun.

Here is how the Mayhem FX shotgun is described on the Fierce Firearms website:

The new FIERCE MAYHEM FX® defines performance in a durable and reliable semi-automatic field shotgun. Serious hunters know that the perfect shot starts with the right gun, and this is it. Lightweight and comfortable featuring optimized stock design, custom trigger guard and premium limb saver pads, the FIERCE MAYHEM FX® has the look and feel of the finest field gun at an affordable price. Available in your choice of TrueTimber® PRAIRIE or STRATA camo pattern and comes with 3 Beretta®/Benelli® Mobil flush chokes and one extended FIERCE® KO custom extended choke. The FIERCE MAYHEM FX® is a valuable addition to your gun cabinet.

The Fierce Firearms Mayhem FX is apparently inertia operated semi-auto shotgun utilizing a mechanism called Inertia WLR Powered System. This shotgun is currently available in 12 gauge only with a 3-1/2″ chamber. The grip and ERGO Slim Contour Forearm have rubberized inserts called MAX-GRIP. The bolt is made of 8000-series steel. The bolt handle is oversized for ease of operation which is especially important when manipulating the gun with gloved hands. The 28″ barrel is fitted with a ventilated rib that has a matte sight plane and fiber optic front bead. The overall weight of this shotgun is 7.7 lbs.

Fierce Firearms MAYHEM FX Semi-Auto Shotgun (3)

The MSRP of the Fierce Firearms Mayhem FX shotgun is $825. It is currently available for preorder with a $200 deposit required. The estimated start of shipping is March 2021.

Pictures by Fierce Firearms,

Hrachya H
Hrachya H

Managing Editor Being a lifelong firearms enthusiast, Hrachya always enjoys studying the history and design of guns and ammunition. Should you need to contact him, feel free to shoot him a message at

More by Hrachya H

Join the conversation
  • RH RH on Jan 29, 2021

    Let me guess, relabeled Turkish product?

    Not only can you get those for half the price, either way your money goes to fund jihad and genocide on 3 different continents.

    No thanks, if it is indeed the case. It isn't made in the USA, and for that price, it isn't an Italian inertia gun either.

    • See 4 previous
    • Nickolas sokaluk Nickolas sokaluk on Jan 30, 2021

      @RH but you can shoot further with it