A few things up front:
This is for handle lovers not haters. If you removed your handle then this might make you reconsider reinstalling it. But if you are not into the handle then kindly don't comment "I just installed a rail" as it will not really help. I respect you and your non-handled KS7...
The simplest thing that I can think of is shown in the following pictures.
Start with 4-1/2 inches of 14 ga. copper wire. Putting some heat shrink on the middle back might be a nice touch. The screws are 6-32 x 3/8"