Blank

Patents tagged Blank

Feb 3, 2026

US12540787 - Method of blank firing

A method of firing a firearm includes providing a blank firing adapter plus bullet trap attached to the end of a barrel of the firearm, the blank firing adapter plus bullet trap including a bore aligned with a longitudinal axis of the barrel; providing a magazine that limits loading of up to two live rounds; and arranging for a blast from a cartridge in the firearm to eject a shell casing from the cartridge and automatically operate the firearm to insert a new cartridge from the magazine into a chamber of the firearm.

Nov 11, 2025

US12467727 - Ammunition blank and corresponding bolt

An ammunition cartridge casing has a casing base with a proximal end surface, a casing body defining an inside volume, and a distal end portion. The casing base defines a primer pocket in communication with the inside volume of the casing body, where the primer pocket is sized and configured such that when a primer is installed in the primer pocket, a proximal face of the primer is recessed into the base at least 0.010″ with respect to the end surface. Blank ammunition made with the cartridge casing is configured for use with a rifle having a bolt with a boss on the breech face that corresponds to the recessed primer.