Ameriglo for Walther PDPWalther PDP Iron Sights can be tricky to decipher what height, with what optic, and what optic plate. Don't worry, we took the guess work out for you and figured out what solution goes with what optic if you pair it with our DOGTAG optic plate. Best part is we give you a huge discount if you pair them. GL 429XL Tall Black serrated . 315 FRONT, Flat Black . 394 Rear. Good for a lower 1 3 co witness on any Walther PDP (2. 0 and F Series) and our DOGTAG