US12345490 - Extended life composite matrix-wrapped lightweight firearm barrel

The patent describes a method for manufacturing a lightweight firearm barrel that includes forming a chamber to a final depth, modifying its metallurgical properties without further machining, and applying a composite matrix wrapping. This innovative design aims to enhance the barrel’s durability and performance while maintaining a lightweight structure.

Claim 1

1. A method for manufacturing a firearm barrel, the method comprising: providing a barrel for a firearm; forming, within the barrel, a chamber configured to hold an ammunition cartridge, wherein an entire geometry of the chamber, including an interior of the chamber, is formed to a final depth within the barrel through the forming; after forming the chamber within the barrel with the entire geometry of the chamber being formed to the final depth, performing a material modification process that modifies one or more metallurgical properties of the barrel, wherein no further material is cut away from the interior of the chamber by machining after the material modification process is complete; after performing the material modification process, applying a composite matrix wrapping that surrounds an outer circumference of the barrel over a length of the barrel; and after the composite matrix wrapping is applied, processing the barrel so as to form a receiver interface onto a portion of an outer surface of the barrel, the receiver interface at least partially overlapping the chamber in a transverse direction. providing a barrel for a firearm; forming, within the barrel, a chamber configured to hold an ammunition cartridge, wherein an entire geometry of the chamber, including an interior of the chamber, is formed to a final depth within the barrel through the forming; after forming the chamber within the barrel with the entire geometry of the chamber being formed to the final depth, performing a material modification process that modifies one or more metallurgical properties of the barrel, wherein no further material is cut away from the interior of the chamber by machining after the material modification process is complete; after performing the material modification process, applying a composite matrix wrapping that surrounds an outer circumference of the barrel over a length of the barrel; and after the composite matrix wrapping is applied, processing the barrel so as to form a receiver interface onto a portion of an outer surface of the barrel, the receiver interface at least partially overlapping the chamber in a transverse direction.

Google Patents

https://patents.google.com/patent/US12345490

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12345490