Mar 31, 2026

US12590773 - Magazine disconnect mechanism

A firearm has a magazine disconnect mechanism. The firearm includes a trigger operable between a resting position and a pulled position. The magazine disconnect mechanism has a trigger block positioned between the trigger and a magazine well of the firearm, where the trigger block is movable between a blocking position and a non-blocking position. In the blocking position the trigger block obstructs moving the trigger to the pulled position. The trigger block occupies the non-blocking position when a magazine is installed in the magazine well, and the trigger block occupies the blocking position when the magazine is absent from the magazine well.

Assignee: Sig Sauer, Inc.
Inventors: Liam E. Taylor, Sean P. Toner, Derek A. Oaks
Filing date: 2024-09-20

firearmmechanismtriggersafety

The patent describes a magazine disconnect mechanism for firearms that prevents the trigger from being pulled when the magazine is not installed. This mechanism includes a movable trigger block that obstructs the trigger’s movement when the magazine well is empty, ensuring safety by preventing accidental discharge.

Claim 1

1 . A firearm comprising: a grip module defining a magazine well configured to receive a magazine; a receiver installed in the grip module; a trigger pivotably mounted to the receiver and operable between a resting position and a pulled position; a magazine disconnect mechanism having a trigger block positioned between the trigger and the magazine well, the trigger block movable from a blocking position to a non-blocking position in response to the magazine well receiving the magazine, wherein the trigger block defines a channel and wherein part of the receiver occupies the channel; and a spring in the channel and positioned between the trigger block and part of the receiver in the channel, wherein the spring biases the trigger block towards the blocking position; wherein the trigger block is in the blocking position when the magazine is absent from the magazine well such that the trigger block obstructs moving the trigger to the pulled position. a grip module defining a magazine well configured to receive a magazine; a receiver installed in the grip module; a trigger pivotably mounted to the receiver and operable between a resting position and a pulled position; a magazine disconnect mechanism having a trigger block positioned between the trigger and the magazine well, the trigger block movable from a blocking position to a non-blocking position in response to the magazine well receiving the magazine, wherein the trigger block defines a channel and wherein part of the receiver occupies the channel; and a spring in the channel and positioned between the trigger block and part of the receiver in the channel, wherein the spring biases the trigger block towards the blocking position; wherein the trigger block is in the blocking position when the magazine is absent from the magazine well such that the trigger block obstructs moving the trigger to the pulled position.

Google Patents

https://patents.google.com/patent/US12590773

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12590773