Quick-Connect Moderator, Extended Barrel

Much of the piece is telescoped over the barrel and there is a multichambered accumulator at the rear half. It attaches with any of these adaptor options. For standard factory barrels, try these 4.5" models. 

A matching pump arm and buttstock  are forthcoming; this may include files for carving some portions. Send feedback for sight blade revisions to include lightpipe elements or mount rails.

Designed to print muzzle up, this model benefits from light manual support around the main locking lug but needs no help on the interior. Start with a brim to keep it from tipping.
Avoid use of automatic supports. Finish ream with 6mm or 5mm twist drill for best results.