The Barrett MRAD Barrel Conversion Kit, .300 Norma Magnum, Black, 10 Round (Barrett Firearms part number 19421) lets an existing MRAD chassis rifle swap into .300 Norma Magnum without buying a second complete rifle. Barrett builds the MRAD system around fast, tool-assisted caliber changes, and this kit supplies the barrel and magazine needed to make the switch. The 26-inch barrel carries a 1-in-8 twist rate suited to heavier .300 Norma Magnum projectiles favored for long-range precision work. A 10-round black magazine is included, matching the cartridge’s larger case dimensions so feeding stays reliable once the conversion is complete.

Key Specifications

• Converts an MRAD chassis rifle to .300 Norma Magnum.
• Barrel measures 26 inches in a bolt-action configuration.
• Rifled with a 1-in-8 twist rate, suited to heavier long-range .300 Norma Magnum bullets.
• Includes a 10-round magazine matched to the cartridge’s case dimensions.
• Part of Barrett’s MRAD Barrel Conversion Kit lineup, classified as an Accessory-Kit.
• Finished in black to match a standard MRAD build.

Frequently Asked Questions

What does this kit include? A 26-inch .300 Norma Magnum barrel and a matched 10-round magazine for the conversion.

What twist rate does the barrel use? A 1-in-8 twist, suited to heavier long-range .300 Norma Magnum projectiles.

Buy the Barrett MRAD Barrel Conversion Kit

Add .300 Norma Magnum capability to your MRAD chassis rifle with this Barrett conversion kit. Order it from our Barrett Firearms lineup of rifle barrels and our Lubbock, Texas team will get it shipped out quickly.