Abstract: A firearm barrel is provided having a body defining an outer surface and a bore. The bore may define a rifling profile along at least a portion of a length of the barrel. The rifling profile may define a cross-sectional profile perpendicular to the length of the barrel at a location along the length of the barrel. The cross-sectional profile may include a plurality of arcuate portions and a plurality of linear portions. The cross-sectional profile may define a cross-sectional area defined by a Sporting Arms and Ammunition Manufacturers' Institute (SAAMI) standard rifling profile. Various embodiments may include firearms, assemblies, components, and methods associated with such firearms and firearm barrels.

Abstract: A firearm barrel is provided having a body defining an outer surface and a bore. The bore may define a rifling profile along at least a portion of a length of the barrel. The rifling profile may define a cross-sectional profile perpendicular to the length of the barrel at a location along the length of the barrel. The cross-sectional profile may include a plurality of arcuate portions and a plurality of linear portions. The cross-sectional profile may define a cross-sectional area defined by a Sporting Arms and Ammunition Manufacturers' Institute (SAAMI) standard rifling profile. Various embodiments may include firearms, assemblies, components, and methods associated with such firearms and firearm barrels.

Abstract: Provided herein are muzzle brakes, firearms, and methods for manufacturing the same. A muzzle brake for attachment to a muzzle end of a firearm includes a body defining a first end that engages a muzzle end of the firearm, a second end opposite the first end, and an axis extending therebetween. The body further defines one or more openings intersecting the axis to form a channel extending between the first end and the second end along the axis. The body further defines a first port extending from the channel to an exterior surface of the body and a second port extending from the channel to the exterior surface of the body between the first port and the second end. In operation, the first port directs gas from the channel to an external environment of the muzzle brake that disrupts gas directed by the second port from the channel.

Abstract: Provided herein are muzzle brakes, firearms, and methods for manufacturing the same. A muzzle brake for attachment to a muzzle end of a firearm includes a body defining a first end that engages a muzzle end of the firearm, a second end opposite the first end, and an axis extending therebetween. The body further defines one or more openings intersecting the axis to form a channel extending between the first end and the second end along the axis. The body further defines a first port extending from the channel to an exterior surface of the body and a second port extending from the channel to the exterior surface of the body between the first port and the second end. In operation, the first port directs gas from the channel to an external environment of the muzzle brake that disrupts gas directed by the second port from the channel.