Clamp-On Muzzle Brake

Installation & Removal Guide

Guide for Non-Threaded Rifles & Shotguns

This Guide is for Clamp-On Muzzle Brakes with no internal threading for your non-threaded barrel. All Grizzly Gunworks Rifle and Shotgun Clamp-On Muzzle Brake styles install the same. Clamp-On Muzzle Brakes come with four bolts. Please read the following before attempting to install or use your Clamp-On Muzzle Brake. Below are examples of different styles of Non-Threaded Muzzle Brakes.

Grizzly Gunworks currently offers the following Rifle and Shotgun Clamp-On Muzzle Brake STYLES:

Defcon 1
Recon
Ghost Protocol
Hunter with 1.25 Inch long spikes
Hunter Flat Face

HOW TO INSTALL A GRIZZLY GUNWORKS CLAMP-ON MUZZLE BRAKE?

All Clamp-On Muzzle Brake styles install and remove the same.
Follow the SAFETY RULES at all times
  1. Make sure the firearm is unloaded.
  2. Remove the bolt and magazine from the firearm.
  3. Align the muzzle brake with the barrel, and slide it on until it is flush with the starting of the first muzzle brake chamber (approx. 1 inch).
  4. Remove all 4 machine bolts from the muzzle brake.
  5. Apply Blue Loctite or removable thread locker to all 4 bolts.
  6. Position the GGW and caliber marking at the bottom. The 4 bolt heads should be facing upwards.
  7. Tighten the four fastening bolts to 75 inch pounds.
    ** Note: Tighten the four bolts gradually, back and forth, and work your way up to 75 inch pounds. Please DO NOT tighten one bolt to 75 and then the other to 75, you have to alternate the bolts while tightening. **

BEFORE TEST FIRING DO THE FOLLOWING:

Follow the SAFETY RULES at all times
  1. Make sure the firearm is unloaded.
  2. Since your bolt is removed, look through the barrel to make sure it is free from obstruction.
  3. Make sure the muzzle brake bolts are tightened to 75 inch pounds.
  4. Make sure the ammunition you are using, the caliber marked on your firearm and the marking on the bottom of your muzzle brake are all matching.
  5. Always wear ear and eye protection during firing.

​HOW TO REMOVE A GRIZZLY GUNWORKS CLAMP-ON MUZZLE BRAKE FROM YOUR FIREARM?

Follow the SAFETY RULES at all times
  1. Make sure the firearm is unloaded.
  2. Remove the bolt and magazine from the firearm.
  3. Loosen the four fastening bolts.
  4. Slide the muzzle brake off until removed.
SAFETY RULES
  • Make sure your firearm is not loaded.
  • Always have the muzzle pointed in a safe direction.
  • Do not place your finger on the trigger or on the trigger guard.
  • Prove your firearm is safe. Remove the bolt and/ or magazine.
  • Always be aware of your target and surrounding area.

WARNING:

GRIZZLY GUNWORKS assumes no responsibility for any injury or property damage resulting from improper or careless handling, intentional or accidental discharge of the firearm.

GRIZZLY GUNWORKS assumes no responsibility for any damage or injury whatsoever occurring in connection with, or as the result of faulty, non-standard, remanufactured, hand-loaded ammunition or cartridges other than those for which the firearm was originally chambered.

Make sure that the ammunition being used matches the caliber that is marked on the side of the barrel and/ or action, as well as, the caliber that is marked on the bottom of your muzzle brake.