Abstract: An interchangeable, modular firearm muzzle mountable system can include a first firearm muzzle mountable device and a second firearm muzzle mountable device. Each device can have an inlet end coupling feature proximate to an inlet end of a central chamber and an outlet end coupling feature proximate to an outlet of the central chamber. The central chamber can be oriented along a central axis within an outer shell and the inlet and the outlet can be configured to allow a projectile from a firearm to pass along the central axis. The inlet end coupling feature of the first device can be removably coupleable with a muzzle end of a firearm and the inlet end coupling feature of the second device can be removably coupleable with the outlet end coupling feature of the first device beyond the muzzle end of the firearm.

Abstract: A particulate capture module for a high energy discharge device includes a particulate capture shell having an inlet and an outlet. The shell inlet can receive a high energy material discharged from the high energy discharge device. The particulate capture module can further include a self-healing particulate capture material arranged within the particulate capture shell to enable the high energy material to pass through the self-healing particulate capture material. The self-healing particulate capture material can capture particulates associated with discharge of the high energy material from the high energy discharge device.

Abstract: A firearm discharge gas flow control device can comprise a first gas chamber fluidly connectable to a muzzle end of a firearm to allow a projectile to pass through and to receive a first portion of a discharge gas generated by firing the projectile. The device can also comprise a second gas chamber fluidly isolated from the first gas chamber and fluidly connectable to the muzzle end of the firearm to receive a second portion of the discharge gas, the second gas chamber having a flow control barrier to modify a flow of the second portion of the discharge gas.

Abstract: An interchangeable, modular firearm muzzle mountable device can include a central chamber oriented along a central axis within an outer shell. The central chamber can have an inlet at an inlet end and an outlet at an outlet end to allow a projectile from a firearm to pass along the central axis. The device can also include an inlet end coupling feature proximate to the inlet end, to removably couple with a muzzle end of a firearm. Additionally, the device can include an outlet end coupling feature proximate to the outlet end, to removably couple with a secondary firearm muzzle mountable device beyond the muzzle end of the firearm.

Abstract: An energy capture and control device is disclosed and described. The device can include a central chamber oriented along a central axis within an outer shell, said central chamber having an inlet configured to receive a high energy material from a high energy outlet. An off axis chamber can be oriented within the outer shell in fluid communication with the central chamber. The off axis chamber can have a fluid outlet and multiple internal walls to produce a serpentine fluid pathway which dissipates energy transferred from the high energy material.