Firearm suppressor with crossbars and inserts

A firearms noise suppressor comprising:

• a base frame comprising a longitudinally forward region and a longitudinally rearward region, the base frame having a central longitudinal axis, the base frame having a plurality of crossbar regions, wherein the crossbar regions include a plurality of insert mount locations spaced longitudinally along the base frame;
• a plurality of inserts attached to the crossbar regions of the base frame at the insert mount locations, the plurality of inserts having a projectile entrance portion and a projectile exit portion, the plurality inserts each having an annular central mount wherein from the annular central mount to the projectile entrance portion the plurality of inserts each have an annular concave surface therearound, the plurality of inserts having an annular flange portion configured to fit within the insert mount locations in the crossbar regions and a transverse flange portion to rest upon a longitudinally forward portion of the crossbar regions;
• a shroud positioned around the base frame and defining in part a primary chamber having sub-chambers between the insert mount locations of the base frame;
• and
• a containment cap to position the shroud around the base frame.