Great for walther pdp - Night Fision Optic Height Fiber Sight Set

I needed taller sights for my Walther PDP and these were only 40 bucks but after installing them, I am very pleased with them. It seems to be almost absolute cowitness but not 100% with my Holosun 407c x2, which is actually very helpful since I can see over the sup. Ngl, I tried to hammer in the rear sight but its WAY too snug so I got a proper sight tool and did easy work of it. I bought the red front sight because I use a green dot but it came with 4 extra front sight fibers, 2 red and 2 green which can be swapped out if needed.