Abstract: An extreme duty machine gun barrel has body having a central bore. The rear opening of the body includes a chamber formed to receive a cartridge. The body has a surface layer covering all surfaces of the body. The body has a diffusion layer extending below the surface layer into an underlying material of the body. The central bore may have rifling defined by lands and grooves formed in the bore. An interior portion of the body may have a hardness of at least 50 HRC and not greater than 55 HRC after the surface layer and diffusion layer are created on the body. The surface layer and diffusion layer may be created by subjecting the body to a ferritic nitrocarburizing treatment followed by an oxy nitrocarburizing treatment. The nitrocarburizing treatments may be repeated. The body may be AISI H13 grade tool steel.

Abstract: A flash suppression system for increasing the reliability of an autoloading firearm has a body having a central bore including the front opening and a rear opening. The rear opening of the body terminates in a conical feature having a front opening and a rear opening. The central bore of the body receives the rear opening of a conical element. The rear opening of the conical element is positioned within the central bore of the body to create a gap between the front opening of the conical feature and the rear opening of the conical element. The front opening of the conical feature has a larger diameter than the rear opening of the conical element.

Abstract: A flash suppression system for increasing the reliability of an autoloading firearm has a body having a central bore including the front opening and a rear opening. The rear opening of the body terminates in a conical feature having a front opening and a rear opening. The central bore of the body receives the rear opening of a conical element. The rear opening of the conical element is positioned within the central bore of the body to create a gap between the front opening of the conical feature and the rear opening of the comical element. The front opening of the conical feature has a larger diameter than the rear opening of the conical element.

Abstract: An adjustable gas block designed to interface with an autoloading firearms gas system. Three positions of adjustment are provided to optimize the gas flow from the barrel for the host firearm. One of the three provided positions of adjustment is selected if a silencer is in use, not in use, or if the user desires to stop the autoloading function of the firearm entirely. This design works by restricting the flow of gas from the gas port in the barrel and does not vent excess gas into the atmosphere around the gas block.

Abstract: A flash suppression system for increasing the reliability of an autoloading firearm has a body having a central bore including the front opening and a rear opening. The rear opening of the body terminates in a expansion feature having a front opening and a rear opening. The central bore of the body receives the rear opening of a conical element. The rear opening of the conical element is positioned within the central bore of the body to create a gap between the front opening of the expansion feature and the rear opening of the comical element. The front opening of the expansion feature has a larger diameter than the rear opening of the conical element.

Abstract: An improved method for producing barrels which need to operate at temperatures exceeding 800 degrees for prolonged periods of time. The method described is ideally suited for barrels which are a part of a crew served weapons, belt feed systems or other fully automatic weapons. My method has limited effect on the accuracy potential of the barrel produced and therefore should not be excluded from use on shoulder fired weapons and precision rifles.

Abstract: An adjustable gas block designed to interface with an autoloading firearms gas system. Three positions of adjustment are provided to optimize the gas flow from the barrel for the host firearm. One of the three provided positions of adjustment is selected if a silencer is in use, not in use, or if the user desires to stop the autoloading function of the firearm entirely. This design works by restricting the flow of gas from the gas port in the barrel and does not vent excess gas into the atmosphere around the gas block.

Abstract: A flash suppression system for increasing the reliability of an autoloading firearm has a body having a central bore including the front opening and a rear opening. The rear opening of the body terminates in a expansion feature having a front opening and a rear opening. The central bore of the body receives the rear opening of a conical element. The rear opening of the conical element is positioned within the central bore of the body to create a gap between the front opening of the expansion feature and the rear opening of the comical element. The front opening of the expansion feature has a larger diameter than the rear opening of the conical element.