Overview Reviews Product Description Radian Weapons Guardian, Holosun 407/507 Optic Guard Mount, Fits Walther PDP 2.0, Anodized Finish, Black, Includes Stealth Back Up Iron Sights H0012 Product Videos Full Manufacturer Name Full Manufacturer Name Radian Weapons Product Reviews Write a Review Write a Review × RADIAN GRDN WALPDP HS407/507+SIGHTS Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *