I too have received the warranty replacement guiderod assembly. I am not impressed. Looks to me like the same oem part that came apart in my gun. After using a modified Kahr CM9 guiderod assemby with decent success, I also tried an a guiderod and recoil spring for a Kahr S9/CW9. I cut the guiderod to the correct length and polished the heck out of it. I cut 4 coils off the recoil spring. It was a struggle getting it in the DB9 the first time, but after sitting in the gun for a while, it has been no problem. It cycles and functions perfectly with this setup as well. I’ll post photos if anyone wants to see them.