THANKS FACE, i did order that exact part, and funny thing is the pic you posted is from my last build
that's my coffee table and my parts
funny thing is, guarder has their trigger relay bar, and shooters design makes the valve knocker but calls it a trigger lever (at least on the site i ordered it from, it was called "Shooters Design Steel trigger lever from a G17" but it is the knocker valve, i did confirm that before ordering it.)
i just wish i had EVERYTHING here now so i could assemble this dam thing. is gonna be together fast cause i learned a lot during the last build.