# US 8,739,448 B2 · Handguard systems for firearms > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,739,448 B2 - Document ID: US8739448B2 - Status: Granted - Kind: B2 - Application number: 13/007,306 - Filed: 2011-01-14 - Published: 2011-08-11 - Granted: 2014-06-03 - Earliest claimed: 2010-01-14 - Assignees: Apex Machining Company, Inc. - Applicants: James E. Kimmel; Joseph A. Ivory - Inventors: James E. Kimmel; Joseph A. Ivory - Web page: https://patentgrep.com/patent/US8739448B2 ## CPC - F41C 23/16: Forestocks; Handgrips; Hand guards (pump-action guns F41C7/02) - Y10T 29/49826: Assembling or joining - 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 - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract A hand guard assembly for attachment to a firearm includes an anchor member and a sleeve. The anchor member is coupled to the firearm and defines an inner bore through which a barrel of the firearm extends when the anchor member is coupled to the firearm. The sleeve surrounds a portion of the barrel of the firearm in an overlying relationship. The sleeve is coupled to the anchor member at a first end so that when the assembly is attached to the firearm, the sleeve is cantilevered from the anchor member with an inner surface of the sleeve and an outer surface of the barrel being radially spaced apart from one another. ## Claims ### Claim 1 A hand guard assembly for attachment to a firearm, the assembly comprising; an anchor member configured to be coupled to the firearm, the anchor member defining an inner bore through which a barrel of the firearm can extend when the anchor member is coupled to the firearm, the anchor member configured to extend completely around the barrel of the firearm; and a sleeve configured to surround a portion of the barrel of the firearm in an overlying relationship, wherein the sleeve is configured to be coupled to the anchor member at a first end portion of the sleeve, the first end portion being configured to extend over and completely around a mating surface of the anchor member in an overlying relationship, and the sleeve and the anchor member being configured such that, when the assembly is attached to the firearm, the sleeve is cantilevered from the anchor member with an inner surface of the sleeve and an outer surface of the barrel being radially spaced apart from one another; wherein the sleeve comprises a unitary component that extends completely around the barrel. ### Claim 2 (depends on 1) The assembly of claim 1, wherein the anchor member comprises a first coupler and a second coupler, the first and second couplers being configured to be fixedly attached to the firearm in opposing alignment. ### Claim 3 (depends on 2) The assembly of claim 2, wherein the first coupler and second coupler collectively define a groove that substantially circumscribes the inner bore of the anchor member, wherein the groove is configured to receive a flange of a barrel nut. ### Claim 4 (depends on 2) The assembly of claim 2, wherein each of the first and second couplers comprises a longitudinally extending sleeve-receiving portion that is configured to extend into the first end portion of the sleeve. ### Claim 5 (depends on 4) The assembly of claim 4, wherein each sleeve-receiving portion comprises a plurality of first openings extending radially through the sleeve-receiving portion and the sleeve comprises a plurality of second openings extending radially through the first end portion of the sleeve, and the first and second openings are positioned so that respective first and second openings can be aligned with one another to receive respective fasteners therethrough to secure the sleeve to the first and second couplers. ### Claim 6 (depends on 1) The assembly of claim 1, wherein the sleeve comprises a central longitudinal axis and, when the assembly is attached to the firearm, the central longitudinal axis of the sleeve is offset from a central longitudinal axis of the barrel of the firearm. ### Claim 7 (depends on 1) The assembly of claim 1, wherein the inner bore comprises a cylindrical barrel receiving region and an intersecting cylindrical operating system region. ### Claim 8 (depends on 1) The assembly of claim 1, wherein the sleeve comprises a plurality of longitudinally extending slots spaced apart from one another circumferentially and longitudinally. ### Claim 9 A method of attaching a hand guard assembly to a firearm, the method comprising: positioning a sleeve so that it surrounds a portion of a barrel of the firearm in an overlying relationship; securing an anchor member to the firearm so that a barrel of the firearm extends through an inner bore of the anchor member; and securing a first end of the sleeve to the anchor member so that the sleeve is cantilevered from the anchor member with an inner surface of the sleeve and an outer surface of the barrel being radially spaced apart from one another; wherein the anchor member comprises a first coupler and a second coupler, and the act of securing the anchor member to the firearm comprises clamping the first and second couplers to the firearm in opposing alignment; wherein the first and second couplers each comprises a longitudinally extending sleeve-receiving portion and the act of securing the first end of the sleeve to the anchor member comprises positioning the longitudinally extending sleeve-receiving portions inside the first end of the sleeve and fastening the longitudinally extending sleeve-receiving portions to the first end of the sleeve. ### Claim 10 (depends on 9) The method of claim 9, wherein the first coupler and second coupler collectively define a groove that substantially circumscribes the inner bore of the anchor member, and the act of securing the anchor member to the firearm comprises mating the groove with a flange portion of a barrel nut of the firearm. ### Claim 11 (depends on 9) The method of claim 9, wherein the sleeve comprises a central longitudinal axis and the first end of the sleeve is secured to the anchor member with the central longitudinal axis of the sleeve being offset from a central longitudinal axis of the barrel of the firearm.