Oct 13, 2026

US12760977 - Adjustable gas regulator valve for direct gas operated firearms

An apparatus and methods are provided for a gas regulator valve for adjusting cycle speeds of direct gas impingement operated firearms. The gas regulator valve comprises a gas inlet for receiving expanding gases from a fired cartridge and a gas tube for directing the expanding gases to a bolt carrier comprising a firearm. The gas inlet is disposed at the front of an upper receiver comprising the firearm. The gas tube directs the expanding gases into a carrier key of the bolt carrier. The gas regulator valve includes a plug for controlling gas flow through the gas tube. An actuator disposed on a side of the upper receiver enables operating the plug. The actuator enables a practitioner to adjust the flow of expanding gases without moving the firearm out of a shooting position. The actuator includes a key that may be turned by a rim of an ammunition cartridge.

Assignee: SureFire, LLC
Inventors: Barry William Dueck, Michael Standen, Eric Hung Leung Chow
Filing date: 2022-04-27

firearmgasregulatorammunition

The patent describes an adjustable gas regulator valve designed for direct gas-operated firearms, allowing users to modify the cycle speed of the bolt carrier while maintaining shooting position. The valve features a gas inlet, a gas tube, and an actuator that can be operated using the rim of an ammunition cartridge to control gas flow effectively.

Claim 1

1 . A gas regulator valve for adjusting cycle speed of a bolt carrier of a firearm, comprising: a valve body for providing a gas inlet; a gas tube for receiving a carrier key of the bolt carrier; a plug for controlling gas flow through the gas tube wherein the plug includes a threaded hole extending through the plug from an open end to a closed end configured to contact a seat inside the valve body; an actuator configured for altering the position of the plug; a stem disposed between the plug and the actuator, wherein the stem includes threads threadably engaged within the threaded hole; a plurality of notches disposed around the circumference of the actuator; a ball biased toward the notches by a spring, wherein the ball and the spring fixate the actuator in specific angular positions; and a recess disposed between the actuator and the stem, wherein the recess is configured to receive at least one dowel to retain the actuator in a valve body. a valve body for providing a gas inlet; a gas tube for receiving a carrier key of the bolt carrier; a plug for controlling gas flow through the gas tube wherein the plug includes a threaded hole extending through the plug from an open end to a closed end configured to contact a seat inside the valve body; an actuator configured for altering the position of the plug; a stem disposed between the plug and the actuator, wherein the stem includes threads threadably engaged within the threaded hole; a plurality of notches disposed around the circumference of the actuator; a ball biased toward the notches by a spring, wherein the ball and the spring fixate the actuator in specific angular positions; and a recess disposed between the actuator and the stem, wherein the recess is configured to receive at least one dowel to retain the actuator in a valve body.

Google Patents

https://patents.google.com/patent/US12760977

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12760977