Adjustable gas pistons for other AK derivatives


Hello all, has anybody looked at the KNS Precision adjustable gas piston and then started thinking “I wonder if this will go into my old Valmet / Galil / Golani rifle?” I cannot get my hands on stripped pistons to do a side by side comparison, so hoping that somebody here has done just that and now has a better warhorse?
Any thoughts about the next evolution with KNS doing the same for the new IWI ACE rifles, or even a similar idea to aid in suppressing the 5.56 Tavor / X95?
Cheers Larry