GunClaims
Weekly firearms and ammunition patent grants.
Dec 23, 2025

US12504248 - Insulating quick interfacing firearm handguard accessory with elongated aperture

An insulated handguard rail panel insert with an elongated aperture that extends through the entirety of the component allowing for the passage of any fluid media past a barrel, gas-system, or any other internal thermally conductive parts of a firearm. The rail panel is designed to be placed within an attachment section of a firearm handguard by firmly pressing it down, causing the engagement fins to contact the interior surface of the handguard. Once installed, the insert acts as a thermally insulating barrier between the thermally conductive metal handguard and the user. It securely attaches to a firearm without the need for any additional manufacturing processes such as the addition of fasteners, cams, bolts, or other hardware in which the method of retention does not impede or obstruct the flow of fluid media through the elongated aperture.

The patent describes an insulated handguard rail panel insert designed to fit within a firearm’s handguard, featuring an elongated aperture that allows fluid media to pass while providing thermal insulation. This insert can be securely attached without additional fasteners, utilizing an integrally molded retention structure that conforms to the handguard’s slotted aperture.

Claim 1

1 . An insulating firearm handguard rail panel insert comprising: a non-metallic component formed of a thermally insulating material; an elongated slot extending through the component to allow for the passage of fluid media; and an interfacing base comprising a retention structure integrally molded with the component and configured to secure the insert within a slotted aperture of a firearm handguard without the use of additional or supplementary components; and wherein the elongated slot extends through the retention structure and the elongated slot has a geometric profile that substantially conforms to the shape of the slotted aperture of the firearm handguard into which the component is secured. a non-metallic component formed of a thermally insulating material; an elongated slot extending through the component to allow for the passage of fluid media; and an interfacing base comprising a retention structure integrally molded with the component and configured to secure the insert within a slotted aperture of a firearm handguard without the use of additional or supplementary components; and wherein the elongated slot extends through the retention structure and the elongated slot has a geometric profile that substantially conforms to the shape of the slotted aperture of the firearm handguard into which the component is secured.

Google Patents

https://patents.google.com/patent/US12504248

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12504248