Radian Weapons unveiled their latest pistol product, the GUARDIAN Optic Guard & Mount, and the SIX back-up sights. The GUARDIAN + SIX is made from 7075 aluminum and 17-4 stainless steel, and employs o-rings to maintain a watertight seal between the plate and the slide. The integration of the SIX back-up sights features an ‘Irons Forward’ design.