US Patent 9291412 Monolithic extended bolt release (EBR) devices and methods

In some embodiments, a monolithic extended bolt release (EBR) for a rifle includes a rifle mount including a pin aperture for securing the EBR to the rifle case/housing, a bolt stop plate integrally formed with the rifle mount for stopping the rifle bolt, and an extension arm integrally formed with the rifle mount and bolt stop plate. The extension arm includes a vertical straight arm extending from the rifle-mounting part to a trigger opening when the EBR is mounted on a rifle, and a horizontal straight arm connected to the vertical straight arm and passing through the trigger opening. A right-handed rifle user can release the bolt by pressing with finger(s) on the EBR on the right of the rifle, pivoting the EBR about the mounting pin, lowering a bolt stop plate of the EBR and allowing release of the bolt and reloading of the rifle. The EBR design displays superior reliability over extended periods of use in harsh conditions.