Aug 11, 2026

US12704336 - Heat shield for firearm suppressors and method

A heat dissipation promoting ventilated protective guard for a firearm suppressor also known as a moderator can include a substantially cylindrical cage shaped body surrounding an inner void that can contain the suppressor. In inwardly projecting beveled stop-surface on the guard bears against a corresponding beveled shoulder on the suppressor to limit axial movement. A snap-ring and wave spring bias the guard against the shoulder. Slits and vents in the mounted guard allow air to pass over the suppressor and prevent contact by a user with a dangerously hot suppressor.

Inventors: Michael L. Smith
Filing date: 2025-01-21

firearmsuppressorheatshield

The patent describes a ventilated heat shield designed for firearm suppressors, featuring a cylindrical body that allows air circulation to dissipate heat and prevent user contact with hot surfaces. The guard is secured to the suppressor using a beveled stop surface and radial lugs that prevent both axial and angular movement.

Claim 1

1 . The combination of a ventilating heat guard coaxially mounted to a firearm suppressor; wherein said suppressor comprises: an oblong outer shell having a central axial bore allowing the passage of a projectile therethrough from a proximal end to a distal end; a radially outwardly projecting peripheral beveled shoulder; wherein said heat guard comprises: a body having an inner void shaped and dimensioned to accommodate said suppressor; said body having a proximal opening to said void and a distal opening to said void; a radially inwardly projecting beveled stop surface; wherein said beveled stop surface bears against said beveled shoulder, preventing axial movement of said guard with respect to said suppressor in a first axial direction; wherein said combination further comprises: said guard further comprising a plurality of angularly spaced apart inwardly extending radial lugs located near a proximal end of said guard; said suppressor further comprising a plurality of notches engaged by said lugs; thereby preventing angular movement of said guard with respect to said suppressor. wherein said suppressor comprises: an oblong outer shell having a central axial bore allowing the passage of a projectile therethrough from a proximal end to a distal end; a radially outwardly projecting peripheral beveled shoulder; an oblong outer shell having a central axial bore allowing the passage of a projectile therethrough from a proximal end to a distal end; a radially outwardly projecting peripheral beveled shoulder; wherein said heat guard comprises: a body having an inner void shaped and dimensioned to accommodate said suppressor; said body having a proximal opening to said void and a distal opening to said void; a radially inwardly projecting beveled stop surface; a body having an inner void shaped and dimensioned to accommodate said suppressor; said body having a proximal opening to said void and a distal opening to said void; a radially inwardly projecting beveled stop surface; wherein said beveled stop surface bears against said beveled shoulder, preventing axial movement of said guard with respect to said suppressor in a first axial direction; wherein said combination further comprises: said guard further comprising a plurality of angularly spaced apart inwardly extending radial lugs located near a proximal end of said guard; said suppressor further comprising a plurality of notches engaged by said lugs; thereby preventing angular movement of said guard with respect to said suppressor. said guard further comprising a plurality of angularly spaced apart inwardly extending radial lugs located near a proximal end of said guard; said suppressor further comprising a plurality of notches engaged by said lugs; thereby preventing angular movement of said guard with respect to said suppressor.

Google Patents

https://patents.google.com/patent/US12704336

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12704336