# US 10,371,486 B2 · Firearm accessory mount > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,371,486 B2 - Document ID: US10371486B2 - Status: Granted - Kind: B2 - Application number: 15/706,043 - Filed: 2017-09-15 - Published: 2018-03-01 - Granted: 2019-08-06 - Earliest claimed: 2016-08-25 - Assignees: WHG Properties, LLC - Applicants: WHG Properties, LLC - Inventors: William H. Geissele; Frank E. Robinson - Web page: https://patentgrep.com/patent/US10371486B2 ## CPC - F41G 11/003: {Mountings with a dove tail element, e.g. "Picatinny rail systems"} - F41A 3/66: Breech housings or frames; Receivers - F41A 5/26: Arrangements or systems for bleeding the gas from the barrel (F41A5/20 - F41A5/24 take precedence) - F41C 27/00: Accessories; Details or attachments not otherwise provided for - F41G 11/007: {the device being tilted in a vertical plane} - F41G 11/008: {the device being pivotable about an axis coaxial with the axis of the barrel, e.g. for loading} - F41G: WEAPON SIGHTS; AIMING (optical aspects thereof G02B) - F41A: FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE - F41C: SMALLARMS, e.g. PISTOLS, RIFLES (functional features or details common to both smallarms and ordnance, mountings therefor F41A; projecting missiles without use of explosive or combustible propellant charge F41B); ACCESSORIES THEREFOR ## Abstract A firearm accessory includes a firearm attachment portion that is configured to attach to a firearm. The firearm attachment portion defines a barrel passage that defines a barrel passage axis. The barrel passage is configured to receive at least a portion of a firearm barrel. The firearm accessory includes an accessory mounting portion that is pivotally attached to the firearm attachment portion. The accessory mounting portion is movable between an open position and a closed position. When in the open position, the accessory mounting portion is positioned away from the barrel passage, and when in the closed position, the accessory mounting portion is positioned at least partially around the barrel passage. ## Claims ### Claim 1 A firearm accessory comprising: a firearm attachment portion configured to mount at least partially around a firearm barrel; an accessory mounting portion pivotally attached to the firearm attachment portion; and a latch configured to lock the accessory mounting portion in a closed position; wherein the firearm attachment portion defines a barrel passage configured to receive at least a portion of the firearm barrel, the barrel passage having a barrel passage axis, and wherein the accessory mounting portion is pivotable about a pivot axis that is generally parallel with the barrel passage axis. ### Claim 2 (depends on 1) The firearm accessory of claim 1, wherein the firearm attachment portion is separable between two halves, the two halves being securable around a portion of the firearm barrel. ### Claim 3 (depends on 1) The firearm accessory of claim 1, wherein the accessory mounting portion is removable from the firearm attachment portion. ### Claim 4 (depends on 1) The firearm accessory of claim 1, wherein the accessory mounting portion is pivotally attached to the firearm attachment portion at a hinge, wherein the hinge includes a first extension of the accessory mounting portion configured to mate with a second extension of the firearm attachment portion and a removable pin. ### Claim 5 (depends on 1) The firearm accessory of claim 1, wherein the firearm attachment portion defines a gas tube passage configured to receive at least a portion of a gas tube. ### Claim 6 (depends on 5) The firearm accessory of claim 5 further comprising a gas tube sleeve configured to secure the firearm attachment portion to the gas tube. ### Claim 7 (depends on 6) The firearm accessory of claim 6, wherein the gas tube sleeve is removably coupled to the firearm attachment portion via one or more fasteners. ### Claim 8 (depends on 1) The firearm accessory of claim 1, wherein the latch comprises a pull lever and a spring loaded pin disposed on the firearm attachment portion. ### Claim 9 (depends on 1) The firearm accessory of claim 1, wherein the accessory mounting portion comprises an accessory rail. ### Claim 10 (depends on 9) The firearm accessory of claim 9, wherein the rail is a picatinny rail. ### Claim 11 A firearm comprising: a receiver; a barrel removably coupled to the receiver; a gas tube; and a firearm accessory comprising: a firearm attachment portion configured to mount at least partially around the barrel; an accessory mounting portion pivotally attached to the firearm attachment portion; and a latch configured to lock the accessory mounting portion in a closed position; wherein the firearm attachment portion defines a barrel passage configured to receive at least a portion of the firearm barrel, the barrel passage having a barrel passage axis, and wherein the accessory mounting portion is pivotable about a pivot axis that is generally parallel with the barrel passage axis. ### Claim 12 (depends on 11) The firearm of claim 11, wherein when the accessory mounting portion is in an open position, the barrel is removable from the receiver via a handle. ### Claim 13 (depends on 11) The firearm of claim 11, wherein the firearm attachment portion defines a gas tube passage configured to receive at least a portion of the gas tube. ### Claim 14 (depends on 13) The firearm of claim 13, wherein the firearm accessory further comprises a gas tube sleeve configured to secure the firearm attachment portion to the gas tube. ### Claim 15 (depends on 14) The firearm of claim 14, wherein the gas tube sleeve is removably coupled to firearm attachment portion via one or more fasteners. ### Claim 16 (depends on 11) The firearm of claim 11, wherein the accessory mounting portion comprises an accessory rail. ### Claim 17 (depends on 16) The firearm of claim 16, wherein the rail is a picatinny rail. ### Claim 18 (depends on 1) The firearm accessory of claim 1, wherein when the accessory mounting portion is in a closed position, the accessory mounting portion defines a top side of the barrel passage. ### Claim 19 (depends on 8) The firearm accessory of claim 8, wherein the spring loaded pin is configured to engage with a latch extension of the accessory mounting portion so as to lock the accessory mounting portion. ### Claim 20 (depends on 11) The firearm of claim 11, wherein when the accessory mounting portion is in a closed position, the accessory mounting portion defines a top side of the barrel passage. ### Claim 21 (depends on 1) A firearm, comprising the firearm accessory of claim 1.