Defcon 1 LITE – 3 Port – Rifle Thread-On Muzzle Brake – 1/2 x 28 – .223/ 5.56 – 9 MM


INSTALLATION GUIDE for the Defcon 1 LITE - 3 Port - Rifle Thread-On Muzzle Brake - 1/2 x 28 threading GGW Defcon 1 LITE - 3 Port Rifle Thread-On Muzzle Brake reduces recoil by a minimum of 90%, eliminates muzzle rise, dust signature and rifle torque. The Defcon 1 LITE 3 Port is made of the highest quality material and workmanship to deliver high performance and recoil reduction, keeping you on target, while increasing accuracy. Available in 416 Stainless Steel; coated with durable and impact resistant Cerakote paint. Grizzly Gunworks Thread-On Muzzle Brakes are made custom for your 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 1/2 x 28 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 finishes are available at NO extra charge:
  • Armor Black
  • Bead Blast Dull Finish
All other custom colors and bead blast polished finish are an additional coating charge of $70.00 U.S. FD Earth is an extra $15.


  • Approximate Dimensions:

    Length : 2.0"
    Width: 1.0"
    Thickness: 0.9"
  • Material and Weight:

    416 Stainless Steel: 3.0 oz
  • Threading:

    1/2 x 28
  • Recoil Reduction:

    Minimum 90% for .223/ 5.56 and 9 MM
  • Caliber:

    .22, .223/ 5.56 and 9 MM
  • For ALL rifles including AR-15 models threaded 1/2 x 28 chambered in .22, .223/ 5.56 and 9 MM

    Grizzly Gunworks Defcon 1 LITE - 3 Port - Rifle - Thread-On Muzzle Brakes are available for all rifles, including and not limited to: ArmaLite Defender AR-15, DPMS AR-15, LWRC International AR-15, Rock River Arms LAR-15, Daniel Defence M4, Sig Sauer M400, Anderson Arms AM14-M4, Colt LE AR-15, Bushmaster AR-15, Windham Weaponry, Ruger AR-556 , Colt XM Commando, STAG-15, Bravo Company, Kriss USA Defiance AR-15, Barrett AR-15 and Smith & Wesson M&P AR-15, Savage and Remington