Defcon 1 LITE ACCURACY INTERNATIONAL Rifle Thread-On Muzzle Brake – 5/8 x 24 – 3/4 x 24 – M18 x 1.5 .



INSTALLATION GUIDE for the Defcon 1 LITE Accuracy International Thread-On Muzzle Brake - 5/8 X 24, 3/4 x 24 and M18 x 1.5 threading

GGW Defcon 1 LITE Accuracy International Rifle Thread-On Muzzle Brake reduces recoil by a minimum of 60%, eliminates muzzle rise, dust signature and rifle torque. The Defcon 1 LITE is made of the highest quality materials and workmanship to deliver high performance and recoil reduction, keeping you on target, while increasing accuracy. Available in 416 Stainless Steel and 7075 Aircraft Aluminum; coated with durable and impact resistant Cerakote paint. Grizzly Gunworks Thread-On Muzzle Brakes are made custom for your Accuracy International rifle; according to your specifications, therefore, producing a uniquely designed Muzzle Brake to perfectly fit your firearm. Grizzly Gunworks Thread-On Muzzle Brakes are customizable offering a minimum of seventeen colors and finishes. Quickly and easily install your Thread-On Muzzle Brake with zero gunsmithing. You are purchasing a Thread-On Muzzle Brake that is made for a threaded barrel. Grizzly Gunworks offers Muzzle Brakes for threaded and non-threaded barrels.

Precision Muzzle Brake Timing All LITE Muzzle Brakes have a built-in Precision Hex Locking Nut for self-timing. Simply tighten the hex locking nut where needed to accurately index your LITE Muzzle Brake.

Colors: Standard three colors and finishes are available at NO extra charge:

  • Armor Black
  • Flat Dark Earth
  • Bead Blast Dull Finish

All other custom colors and bead blast polished finish are an additional coating charge of $35.00 U.S.


  • Approximate Dimensions:

    Length : 3.0"
    Width: 1.0"
    Thickness: 0.9"
  • Material and Weight:

    416 Stainless Steel: 4.5 oz
    7075 Aircraft Aluminum: 1.5 oz
  • Threading:

    5/8 X 24, 3/4 x 24 and M18 x 1.5
  • Recoil Reduction:

    Minimum 60% for .338
  • Caliber:

    .300, .308 and .338
  • Accuracy International Models:

    Grizzly Gunworks LITE Thread-On Muzzle Brakes are available for all Accuracy International rifles, including and not limited to: AI Arctic Warfare, AI AW Police and AI AW Magnum.