Suppressor for firearm and baffle cup therefor

A baffle cup for use in a firearm suppressor, the baffle cup comprising:

• a generally conical baffle wall having a cone axis, a proximal end portion and a distal end portion spaced apart from one another along the cone axis, and a diameter, the diameter of the conical baffle wall increasing as the conical baffle wall extends from adjacent the proximal end portion toward the distal end portion, the conical baffle wall defining a bore extending along the cone axis;
• a flange portion extending radially outward from the proximal end portion of the conical baffle wall and having a proximal end oriented transverse to the cone axis and an opposite distal end;
• a vent passage extending along a venting axis oriented at a skew angle with respect to the cone axis, the vent passage including a first segment formed in the proximal end, and a second segment formed in at least one of the flange portion and the conical baffle wall, the first and second segments of the vent passage each extending along the venting axis.

A method of forming a baffle cup for use in a firearm suppressor, the method comprising:

• forming a wall extending along a baffle cup axis and extending circumferentially around the baffle cup axis to define a cup passage along the baffle cup axis;
• and
• forming a vent passage in the wall having a first segment and a second segment disposed on an opposite side of the baffle cup passage from the first segment by inserting a material removing tool through the wall along a venting axis oriented at a skew angle with respect to the baffle cup axis.

A suppressor for suppressing a blast of a firearm, the suppressor comprising:

• a baffle cup assembly including at least first and second baffle cups threaded together to form a threaded interface of the baffle cups, the baffle cup assembly having a projectile passage along which a projectile can pass along a projectile axis, the first and second baffle cups including respective shoulders in engagement with each other to form a sealed interface between the first and second baffle cups, the sealed interface being located upstream from the threaded interface with respect to the projectile passage, and
• a housing that houses the baffle cup assembly,
• wherein the housing and baffle cup assembly are arranged to define an interstitial space between the baffle cup assembly and the housing, the interstitial space extending circumferentially around the baffle cup assembly, the interstitial space being sealed from gas flow from the projectile passage at least in part by said sealed interface.