Aug 25, 2026

US12716667 - 3D printed bolt receiver with reinforcing blade and picatinny rail

An improved receiver such as for bolt action firearms has an integrally formed reinforcing feature or blade situated below the ejection port. This blade extends longitudinally from the proximal receiver bridge to the distal receiver bridge and may continue into the barrel boss region. Functioning like an arch bridge, the reinforcing blade significantly enhances the structural rigidity of the bolt receiver at its weakest point around the ejection port, reducing flexion during firing and minimizing fatigue. The blade tapers in thickness both laterally away from the receiver's centerline and longitudinally toward the distal end, optimizing material usage while maximizing structural benefits. The bolt receiver is preferably fabricated as a single, monolithic structure using metal 3D printing technology, which allows for the integral formation of additional features such as a Picatinny rail on the top surface and a recoil lug at the distal end portion. These integrated components collectively improve the receiver's functionality, durability, and versatility.

Inventors: Bobby McCreight
Filing date: 2024-12-04

firearmreceiverbolt3dprinting

The patent describes a 3D printed bolt receiver for firearms that features an integrally formed reinforcing blade to enhance structural rigidity around the ejection port. This innovative design allows for the incorporation of additional features like a Picatinny rail, improving the receiver’s functionality and durability.

Claim 1

1 . A receiver for a firearm, comprising: a reinforcing blade integrally formed with the receiver below an ejection port, wherein the reinforcing blade extends longitudinally from a proximal receiver bridge to a distal receiver bridge, the reinforcing blade being integrally connected to a metal strip located between the ejection port and a magazine well of the receiver, and the reinforcing blade tapering in thickness both laterally away from a centerline of the receiver and longitudinally toward a distal end of the receiver, thereby enhancing the structural rigidity of the receiver. a reinforcing blade integrally formed with the receiver below an ejection port, wherein the reinforcing blade extends longitudinally from a proximal receiver bridge to a distal receiver bridge, the reinforcing blade being integrally connected to a metal strip located between the ejection port and a magazine well of the receiver, and the reinforcing blade tapering in thickness both laterally away from a centerline of the receiver and longitudinally toward a distal end of the receiver, thereby enhancing the structural rigidity of the receiver.

Google Patents

https://patents.google.com/patent/US12716667

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12716667