RTI Rti bottle protector

I have not, but if you are just looking for options and aren’t set on that particular model, they had some other versions that were basically extended Picatinny rails. Also, this thread below has some “home made” versions of extended rails. I think there are several on page 5 that might give you ideas. I created one od the carbon fiber tube versions for mine.

 
I have the Huma pic rail. It is smaller but much sturdier than the m-lock rail. I saw the m -lock rail on my buddy's Mora and didn't like it. p3rail.jpg