Abstract: In some embodiments, a fire control mechanism comprises a hammer, a trigger and a safety. The hammer is rotatable about a hammer axis. The trigger is rotatable about a trigger axis and arranged to contact the hammer. The safety is arranged to interfere with rotation of the trigger. The safety comprises a second portion moveable with respect to a first portion.

Abstract: In some embodiments, a firearm action mechanism comprises a bolt assembly, a counterweight and a connector engaged with the bolt assembly and with the counterweight. The bolt assembly is arranged to move along a first axis. The counterweight is arranged to move along a second axis. A direction of movement of the bolt assembly is different from a direction of movement of the counterweight. In some embodiments, the movement of the counterweight is opposite the movement of the bolt assembly. In some embodiments, the connector comprises a roller.

Abstract: In some embodiments, a firearm muzzle device comprises a body comprising an internal passageway comprising a first portion and a second portion. The first portion comprises a larger cross-sectional area than the second portion. A plurality of first vents are each in fluid communication with the first portion. A plurality of second vents are each in fluid communication with the second portion.

Abstract: In some embodiments, a fire control assembly comprises a trigger rotatable about a trigger axis and a hammer rotatable about a hammer axis. The trigger comprises a trigger sear. The hammer comprises a hammer sear. The trigger sear contacts the hammer sear at a sear engagement location. A reference triangle extending between the trigger axis, the hammer axis and the sear engagement location comprising a sear location interior angle greater than 130 degrees.

Abstract: In some embodiments, a fire control assembly comprises a frame, a hammer, a trigger and a disconnector. The frame is arranged to be supported along a trigger axis and a hammer axis. The hammer is rotatable about the hammer axis and the trigger is rotatable about the trigger axis. The frame comprises a hammer stop arranged to impede rotation of the hammer. The frame comprises a preloading mechanism arranged to contact a safety selector.

Abstract: In some embodiments, a fire control mechanism comprises a frame comprising a flange comprising a peak. A hammer is arranged to pivot about a hammer axis. A hammer spring is arranged to bias the hammer about the hammer axis. The hammer spring contacts the peak of the flange.

Abstract: In some embodiments, a firearm action mechanism comprises a bolt assembly, a counterweight and a connector engaged with the bolt assembly and with the counterweight. The bolt assembly is arranged to move along a first axis. The counterweight is arranged to move along a second axis. A direction of movement of the bolt assembly is different from a direction of movement of the counterweight. In some embodiments, the movement of the counterweight is opposite the movement of the bolt assembly. In some embodiments, the connector comprises a roller.

Abstract: In some embodiments, a fire control assembly comprises a frame, a hammer, a trigger and a disconnector. The frame is arranged to be supported along a trigger axis and a hammer axis. The hammer is rotatable about the hammer axis and the trigger is rotatable about the trigger axis. The frame comprises a hammer stop arranged to impede rotation of the hammer. The frame comprises a preloading mechanism arranged to contact a safety selector.

Abstract: In some embodiments, a firearm muzzle device comprises a body comprising an internal passageway comprising a first portion and a second portion. The first portion comprises a larger cross-sectional area than the second portion. A plurality of first vents are each in fluid communication with the first portion. A plurality of second vents are each in fluid communication with the second portion.

Abstract: In some embodiments, a fire control assembly comprises a frame, a hammer, a trigger and a disconnector. The frame is arranged to be supported along a trigger axis and a hammer axis. The hammer is rotatable about the hammer axis and the trigger is rotatable about the trigger axis. The frame comprises a hammer stop arranged to impede rotation of the hammer. The frame comprises a preloading mechanism arranged to contact a safety selector.

Abstract: In some embodiments, a firearm suppressor comprises a body comprising a sidewall defining a cavity. In some embodiments, the body is configured for attachment to a firearm such that a muzzle of the firearm barrel is oriented in the cavity. In some embodiments, the suppressor comprises a rotating member oriented in the cavity, which is arranged to rotate with respect to the body. In some embodiments, the rotating member comprises a plurality of turbine blades and a central aperture.

Abstract: In some embodiments, a fire control mechanism comprises a hammer, a trigger and a safety. The hammer is rotatable about a hammer axis. The trigger is rotatable about a trigger axis and arranged to contact the hammer. The safety is arranged to interfere with rotation of the trigger. The safety comprises a second portion moveable with respect to a first portion.

Abstract: In some embodiments, a fire control mechanism comprises a frame comprising a flange comprising a peak. A hammer is arranged to pivot about a hammer axis. A hammer spring is arranged to bias the hammer about the hammer axis. The hammer spring contacts the peak of the flange.

Abstract: In some embodiments, a fire control mechanism comprises a trigger, a hammer and a disconnector. The trigger comprises a trigger sear and is arranged to rotate about a trigger axis. The hammer comprises a hammer sear and a secondary sear and is arranged to rotate about a hammer axis. The disconnector comprises a disconnector sear and is arranged to move with respect to the trigger. The fire control mechanism comprises an orientation wherein the trigger sear contacts the hammer sear and the secondary sear contacts the disconnector sear.

Abstract: In some embodiments, a fire control assembly comprises a frame, a hammer, a trigger and a disconnector. The frame is arranged to be supported along a trigger axis and a hammer axis. The hammer is rotatable about the hammer axis and the trigger is rotatable about the trigger axis. The frame comprises a hammer stop arranged to impede rotation of the hammer. The frame comprises a preloading mechanism arranged to contact a safety selector.