US12455126 - Modular frame and chassis system for a firearm

The patent describes a modular firearm system featuring a frame with a grip and a receiving chamber, along with a chassis designed to fit into the frame. Additionally, it includes a barrel locking block that integrates with the chassis, enhancing the firearm’s modularity and customization.
Claim 1
1 . A modular firearm system, comprising: a frame having a grip configured to be held by a hand of a user and a receiving chamber formed within the grip; a chassis having a receiving channel and one or more sidewalls extending from a bottom portion of the chassis, the one or more sidewalls structured to fit within and be received by the receiving chamber of the frame; and a barrel locking block structured to fit within and be received by the receiving channel of the chassis. a frame having a grip configured to be held by a hand of a user and a receiving chamber formed within the grip; a chassis having a receiving channel and one or more sidewalls extending from a bottom portion of the chassis, the one or more sidewalls structured to fit within and be received by the receiving chamber of the frame; and a barrel locking block structured to fit within and be received by the receiving channel of the chassis.
Google Patents
https://patents.google.com/patent/US12455126
USPTO PDF
https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12455126