Oct 28, 2025

US12455130 - Firearm magazine with molded seam

A firearm magazine having a body constructed by a two-stage process. First, a fabrication stage shapes a sheet material into a substantially tubular magazine body with a joint having one or more retainers formed along the mating ends. Second, a molding stage joins the mating edges using a plastic that fills the joint between the mating edges. One or more retainers along the mating ends are designed to distribute forces applied to the magazine body along the seam and provide support from the sheet material to secure the connection rather than rely on the tensile strength of the filler material to maintain the joinder of the mating edges.

Assignee: Elite Tactical Systems Group, LLC
Inventors: George E. Loveday, IV, Nathan Dudney, Mark Hillis, Evan Dungan, Joel Stanley
Filing date: 2024-02-19

firearmmagazineammunition

The patent describes a firearm magazine constructed from a sheet material using a two-stage process that includes shaping the material into a tubular body and then molding a filler to join the edges. The design features retainers that enhance the structural integrity of the magazine by distributing forces along the seam, rather than relying solely on the filler material for strength.

Claim 1

A firearm magazine, said firearm magazine comprising: a body section fabricated from a sheet material, said body section being substantially tubular, said body section having a top end and a bottom end, said body section having a wall having two interior edges, each of said interior edges having a contour, said interior edges defining a gap that extends from said top end to said bottom end and defining a longitudinal axis, said interior edges defining a retainer such that said interior edges are nonlinear, said retainer configured to resist a separating force having a component that is perpendicular to said longitudinal axis, said wall having an interior face and an exterior face; and a seam filling said gap, said seam filling in around said contours, said seam fixedly connecting said interior edges, said seam including at least one retainer, said seam fabricated from a second material, said second material being different from said sheet material, said second material having a lower melting temperature than said sheet material. a body section fabricated from a sheet material, said body section being substantially tubular, said body section having a top end and a bottom end, said body section having a wall having two interior edges, each of said interior edges having a contour, said interior edges defining a gap that extends from said top end to said bottom end and defining a longitudinal axis, said interior edges defining a retainer such that said interior edges are nonlinear, said retainer configured to resist a separating force having a component that is perpendicular to said longitudinal axis, said wall having an interior face and an exterior face; and a seam filling said gap, said seam filling in around said contours, said seam fixedly connecting said interior edges, said seam including at least one retainer, said seam fabricated from a second material, said second material being different from said sheet material, said second material having a lower melting temperature than said sheet material.

Google Patents

https://patents.google.com/patent/US12455130

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12455130