3d printing

PSE Composites Limited
  1. 3d printed moderator?

    I've got 5 free 22lr moderator slots on my FAC and I'd like to see if a light weight 3d printed mod would work on my 22lr and was wondering the legalities of this, I could add a serial number to the mod and record it on my FAC, just wondering the possibilities, obviously this wouldn't be for any...