Sig Sauer 3D-printed suppressors cut toxic blowback; proposes training vs combat cans

Sig Sauer describes using DMLS 3D-printing to create complex internal gas paths in SLX/SLH suppressors, claiming up to ~70% reduction in toxic gas blowback—addressing a key issue reported with suppressed NGSW weapons. The novel concept is fielding different suppressor variants optimized for low-toxicity training versus signature reduction in combat, enabled by rapid design iteration and specialized fume-testing chambers.