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

Click on the images to enlarge them. 

Ghost Protocol THREAD ON Muzzle Brakes for the AR

Ghost Protocol CLAMP ON Muzzle Brakes for the AR

Ghost Protocol Muzzle Brake Demo



The GHOST PROTOCOL 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.  Due to the design and direction of the muzzle brake's multiple ports your AR's recoil, muzzle rise and dust signature are virtually ELIMINATED.  There are no ports on the bottom of this muzzle brake style in order to prevent the barrel from rising, as well as, hide any dust signature when shooting from the ground.  The 7 holes drilled through the length of the GHOST PROTOCOL Muzzle Brake massively disrupt the gases, redirect much of the flash away from the shooter's sight path, and keep the flash to a minimum during firing in the dark of the night.  The GHOST PROTOCOL Muzzle Brake, however, is not a flash hider.  Some of the noise created by the brake is, also, less evasive to the ears because of the multi-port design.  The GHOST PROTOCOL, also, reduces target acquisition time, vertical dispersion and maintains your AR’s accuracy.  Our muzzle brakes are custom made to specifically fit your barrel’s specifications further enhancing your AR’s precision.  The GHOST PROTOCOL is available in various finishes to match your weapon; choose your color, finish, material, mounting option, and caliber.  The GHOST PROTOCOL 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.
  • 23 external ports plus 7 internal ports. 
  • Available in the Clamp-On Design that fits original factory barrels 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 AR 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 rifles including; Colt AR 15, Bushmaster AR 15, Sig Sauer AR, to name a few.


Diameter:  1.25 inches to 1.6 inches depending on barrel diameter
Thread On Length:  2.75 inches
Clamp On Length:  3.14 inches 
Weight: - Steel - Approx. 0.4 lbs 
              - 416 Stainless Steel -  Approx. 0.4 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.or KG Ceramic Gun Kote
Material:  Steel, 416 Stainless Steel, 7075 Aircraft Aluminum
Mount Option:  - Threaded
                        -  Clamp-On - fits barrels with non-threaded muzzles.
Caliber:  Rifle specific.

Ghost Protocol Muzzle Brake Colors/ Finishes:

Click on the pictures below to see a more detailed view of the Ghost Protocol Muzzle Brake color/ finish ideal for your AR.