Hammersmith Rifle Model SG 25

Pittsburgh – October 07, 2026 -- An InventHelp client has filed a patent application for the Hammersmith Rifle, Model SG 25, an ambidextrous service rifle platform designed to be reconfigured by individual operators for fit and field conditions, and is now seeking manufacturers or marketers for licensing.

Design targets user-specific fit and recoil management

The Model SG 25 features an adjustable side-folding stock and a pistol grip that can be set to the shooter's preferred length of pull and hand size. An adjustable gas and operating system lets operators tune the weapon to their recoil tolerance and to varying environmental conditions.