May 5, 2026

US12618628 - Forged carbon fiber rifle barrel

A method of forming a carbon fiber rifle barrel may include the steps of heating a barrel core to increase the length of the barrel, placing the barrel core inside a mold and holding the lengthened barrel in place, adding a carbon fiber mix to the mold in which the carbon fiber mix includes a blend of resin and chopped carbon fibers, sealing the mold, curing the carbon fiber mix surrounding the lengthened barrel core in which the cured carbon fiber mix holds the length of the barrel core creating a tension on the cooled barrel core which increases a rigidity of the rifle barrel thereby increasing the accuracy of the rifle barrel, removing the rifle barrel from the mold, and finishing the rifle barrel via grinding to a desired finish.

Assignee: Grey Birch MFG
Inventors: Jeff Hussey
Filing date: 2025-03-14

firearmbarrelcarbonfiberrifle

The patent describes a method for creating a carbon fiber rifle barrel that involves heating a barrel core, placing it in a mold, and surrounding it with a carbon fiber mix to enhance rigidity and accuracy. The process includes curing the carbon fiber and finishing the barrel through grinding to achieve the desired specifications.

Claim 1

1 . A method of forming a rifle barrel comprising the steps of: heating a barrel core, wherein the heating increases a length of the barrel core; placing the barrel core inside a mold and holding the lengthened barrel core in tension; adding a carbon fiber mix to the mold, wherein the carbon fiber mix comprises a blend of resin and chopped carbon fibers; sealing the mold; curing the carbon fiber mix surrounding the barrel core, wherein the cured carbon fiber mix holds the tension on the barrel core, and wherein the tension increases a rigidity of the rifle barrel; removing the rifle barrel from the mold; and finishing the rifle barrel via grinding to a desired finish. heating a barrel core, wherein the heating increases a length of the barrel core; placing the barrel core inside a mold and holding the lengthened barrel core in tension; adding a carbon fiber mix to the mold, wherein the carbon fiber mix comprises a blend of resin and chopped carbon fibers; sealing the mold; curing the carbon fiber mix surrounding the barrel core, wherein the cured carbon fiber mix holds the tension on the barrel core, and wherein the tension increases a rigidity of the rifle barrel; removing the rifle barrel from the mold; and finishing the rifle barrel via grinding to a desired finish.

Google Patents

https://patents.google.com/patent/US12618628

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12618628