• KSG Tactical Shotgun Upgrade to Breach a Door or Bust a Window if needed!
  • Replaces the Factory Barrel Nut
  • A311 Stress Proof Carbon Steel 
  • Gives you Options...Just in Case!
  • Custom KSG Shotgun Accessories by Combat Veterans!  
  • Protected by the M*CARBO 100% Lifetime Guarantee
  • Best Kel Tec KSG Aftermarket Parts Made Right Here in America!
  • Fast Same Day Shipping!
  • Installation will require a KSG Barrel Nut Removal Tool

KEL-TEC KSG Breacher Barrel Nut - KSG Tactical Breacher Nut

KSG Combat Barrel Nut incorporates Sharp Teeth to locate Shotgun on Door Jamb for Breaching. Sharp teeth allow this KEL TEC KSG Upgrade to penetrate the door jamb and locate the shotgun barrel in the proper 45 x 45 degree alignment for door breaching.

Sharp Teeth center KSG Shotgun on Door Jamb for a More Effective and Efficient Breaching Operation!

Ultimate KEL TEC KSG Mods for a Completely Custom KSG! MCARBO offers Unique KSG Parts and KSG Mods for Tactical Enhancement!

A must have for your KEL TEC KSG Accessories! Installation will require a KSG Barrel Nut Removal Tool

Lifetime Durability with Ultimate Strength Material A311 Stress Proof Carbon Steel CNC Machined for the Best KSG Upgrade for Tactical Breaching Options.

The unique sharp teeth serve as a “window popper” and can also be used as a device for non-lethal crowd control. Custom KSG Parts and KSG Mods by M*CARBO will make it a 21st Century Hi Tech Custom KSG!

KEL-TEC KSG Owners Manual & Exploded View:

If your getting the KEL-TEC KSG Breacher Barrel Nut then you might find the following KEL-TEC KSG Resources useful in further enhancing your firearm. Download the KSG Owners Manual or use the Exploded View of the KSG Parts Diagram to plan your next firearm project.

No Hassle 100% Lifetime Guarantee on Parts & Accessories:

The KEL-TEC KSG Breacher Barrel Nut is protected by the M*CARBO No Hassle 100% Lifetime Guarantee against any product quality issues or workmanship defects. If parts fail or are deemed defective we will send you a replacement regardless.

Tested and Approved:

The KEL-TEC KSG Breacher Barrel Nut has been tested repeatedly to ensure reliable operation and safety. MCARBO KEL-TEC KSG Accessories are KEL TEC KSG California Legal.

Veteran Owned and Operated Business:

American made KEL-TEC KSG Breacher Barrel Nut are designed and manufactured by Combat Veterans. We will donate a portion of your purchase to the Military Foundations we humbly support.


You must be 18 yrs of age to purchase. We advise that all parts purchased from our inventory be installed and inspected by a qualified gunsmith. Modifying your weapon may be prohibited in your state. Do not modify your sear or hammer engagement surfaces, with or without the KEL-TEC KSG Breacher Barrel Nut. Before installing please be sure to check all local state and federal laws. By installing this part you agree to take full responsibility for any and all legal, health and warranty consequences that may be incurred.

Overall Customer Rating of 16 Reviews:

Great product

Fast shipping, great instructions and customer service. Product was as expected and easy to install. 5/5 would recommend for KSG owners.

Wrench broke on 1st twist

Frustrating af

New York

looks amazing

sharp af . Looks amazing

Bad ass!!

This makes the KSG look even meaner.. This is a great add on & is highly recommended..

Ready for action

Easy installation with the included wrench and looks great!

Number of questions: 0