Who makes one?

Alright thanks guys. I had seen the qa1 but didnt know about compatibility. My factory k frame (/6) has small bends and dents in spots and has rust, dirt, and small rocks on the inside from sitting where it had been. The top of the frame is undercoated so i cant see if there is any surface rust. Just in the process of deciding wether the qa1 would be a better choice than worrying about the x factors of my frame, mainly in the long run