Halinfax on airgunforums does this, he did my hatsan piston, supplied a spare delrin ring too.
He also lightened (drilled) the piston & threaded the barrel for a silencer
.
Halinfax on airgunforums does this, he did my hatsan piston, supplied a spare delrin ring too.
He also lightened (drilled) the piston & threaded the barrel for a silencer
.
Rick Astley for Prime Minister !