Nov 3, 2026

US12782069 - Quick-release firearm gas block

A firearm gas block assembly includes separate gas block and gas block retaining bodies each having a central bore engageable with a gas block journal of a barrel. The gas block retaining body includes a retention member passage that intersects the central bore of the gas block retaining body to define an opening between the central bore and the retention member passage. A retention member within the retention member passage is moveable between first and second positions. A portion of the retention member extends through the opening when in the first position. No portion of the retention member extends through the opening when in the second position. Gas flow control discontinuities may be within a surface of the gas block defining the central passage. A travel limiting member may be engaged with the retention member and the gas block for limiting axial movement of the retention member.

Assignee: Ares Defense Systems, Inc.
Inventors: Geoffrey A. Herring
Filing date: 2026-01-15

firearmgasblockmechanism

The patent describes a quick-release firearm gas block assembly featuring a gas block and a retaining body, each with a central bore designed to engage a barrel’s gas block journal. The assembly includes a movable retention member that can extend into or retract from the central bore, allowing for controlled gas flow and easy disassembly.

Claim 1

1 . A firearm gas block system, comprising: a gas block having a central bore extending through opposing end faces of the gas block, wherein a first one of the opposing end faces of the gas block is a main body engagement face and wherein the central bore of the gas block has a diametrical size for operably mating with a gas block journal of a barrel; and a gas block retaining assembly including a main body having a central bore extending through opposing end faces of the main body, a retention member passage intersecting the central bore of the main body to define an opening between the central bore of the main body and the retention member passage, and a retention member within the retention member passage, wherein the retention member is moveable between a first position within which at least a portion of the retention member extends through the opening into the central bore of the main body and a second position within which no portion of the retention member extends through the opening into the central bore of the main body, wherein a second one of the opposing end faces of the main body is a gas block engagement face, and wherein the central bore of the main body has a diametrical size for operably mating with the gas block journal of the barrel. a gas block having a central bore extending through opposing end faces of the gas block, wherein a first one of the opposing end faces of the gas block is a main body engagement face and wherein the central bore of the gas block has a diametrical size for operably mating with a gas block journal of a barrel; and a gas block retaining assembly including a main body having a central bore extending through opposing end faces of the main body, a retention member passage intersecting the central bore of the main body to define an opening between the central bore of the main body and the retention member passage, and a retention member within the retention member passage, wherein the retention member is moveable between a first position within which at least a portion of the retention member extends through the opening into the central bore of the main body and a second position within which no portion of the retention member extends through the opening into the central bore of the main body, wherein a second one of the opposing end faces of the main body is a gas block engagement face, and wherein the central bore of the main body has a diametrical size for operably mating with the gas block journal of the barrel.

Google Patents

https://patents.google.com/patent/US12782069

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12782069