"Not So Duty Proven" Enclosed Emitter Fiasco
This video critically examines the 'duty proven' marketing of enclosed emitter red dot sights, presenting evidence of widespread failures due to moisture ingress and internal fogging. Instructors Eric and Roy highlight specific issues with popular models like the Aimpoint Acro P2 and Holosun 509T, while noting the Steiner MPS and Holosun EPS as potential exceptions. They urge consumers to avoid brand loyalty and conduct their own rigorous testing.









