Oct 28, 2025

US12455126 - Modular frame and chassis system for a firearm

A modular firearm system has a frame with a grip configured to be held by a hand of a user and a receiving chamber formed within the grip. The system further has 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. The system further has a barrel locking block structured to fit within the receiving channel of the chassis.

firearmmodularchassisframe

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

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