The GRIZZLY Muzzle Brake for Assault Rifles is manufactured specifically to tight tolerances and high quality to ensure your recoil, dust signature, muzzle rise and rifle torque are virtually ELIMINATED.  There are 4 ports along each side of the muzzle brake to grab the gases and pull the AR away from your shoulder during firing.  The bottom of the GRIZZLY Muzzle Brake is solid and machined at a specific angle to keep the dust/dirt from being disrupted when shooting from the ground position, and to hold the muzzle down during rapid firing  The GRIZZLY, also, reduces target acquisition time, vertical dispersion and maintains your rifle’s accuracy.  Our muzzle brakes are custom made to specifically fit your barrel’s specifications further enhancing your assault rifle’s precision.  The GRIZZLY is available in various finishes to match your weapon; choose your color, finish, material, mounting option, face design and caliber.  The GRIZZLY is, also, available for threaded and non-threaded barrels.  Grizzly Gunworks offers an advanced design for non-threaded barrels, called the CLAMP-ON Muzzle Brake.  The above saves you time, money and leaves the barrel in its original condition as it is not required to have your barrel threaded by a gunsmith.  The installation of our muzzle brakes is precise, fast and simple.  The above options allow you to choose the perfect muzzle brake for your AR with superior quality and unmatched performance.

Product Specifications:

  • Custom made for any threaded or non-threaded Assault Rifle.
  • 8 port design.
  • Available in the Clamp-On Design that fits any barrel without thread.
  • Available in the Thread-On Design that fits threaded barrels.  If your barrel is not threaded and you would like to purchase a Thread-On Muzzle Brake your rifle will need to be threaded by a gunsmith. 
  • Four bolt Clamp-On design for Non-Threaded Rifles.
  • No bolt Thread-On design for Threaded Rifles.
  • Coated in KG Ceramic Gun Kote for a hard, durable and long lasting finish.
  • Recoil is virtually ELIMINATED.
  • Tested on many ARs including:  Colt AR 15, Bushmaster AR 15, Sig Sauer AR, to name a few. 


Diameter:  1.375 inches (small barrel), 1.5 inches (large barrel) 
Thread On Length:  2.75 inches
Clamp On Length:  3.140 inches 
Weight: - Steel - Approx. 0.5 lbs 
              - 416 Stainless Steel -  Approx. 0.5 lbs
              - 7075 Aircraft Aluminum - Approx. 0.2 lbs 

Customizable Options:

Color:  Flat Black, Flat Dark Earth, Flat OD Green, Flat Desert Tan, Dull Bead Blasted, Shiny, Dull Bead Blasted with Black Ports, Shiny with Black Ports.
Finish:  Dull Bead Blasted, Shiny, KG Ceramic Gun Kote.
Material:  Steel, 416 Stainless Steel, 7075 Aircraft Aluminum
Face Design:  Flat Standard, Battle Spikes
Mount Option:  - Thread-On
                        -  Clamp-On - fits any barrel without threading
Caliber:  Rifle specific.

Grizzly Muzzle Brake Colors/ Finishes:

Click on the pictures below to see a more detailed view of the Grizzly Muzzle Brake color/ finish ideal for your Assault Rifle. 

Grizzly CLAMP ON Muzzle Brakes for the AR


Displayed below are many examples of our previous work on Grizzly AR Muzzle Brakes, for threaded and non-threaded barrels.  

Click on the images to enlarge them.  

Grizzly THREAD ON Muzzle Brakes for the AR

Grizzly Muzzle Brake Demo


GRIZZLY Muzzle Brake with BATTLE SPIKES for the AR

Tel. (226) 208-1200