I have an FX Impact that came with its hollow moderator. I bought a Donny FL for it and it works great. I just bought an Air Arms S510 that did not come with a moderator. I did buy the Donny FL thread adapter for the Air Arms muzzle that allows the FX hollow moderator to attach. Has anyone on the forum made the guts for one of the FX moderator. I have access to machinery to make the necessary internals but if someone has some drawings or sketches of what they made and are willing to share i would be grateful.
Randy
Randy