Upgraded now with the Guarder hammer spring and Guarder steel valve knocker.......total failure...the hammer works properly but or it hits the valve with low strenght or it is out of centre respect to the mag valve.
Put back the original valve knocker it works well but only with the original magazine, with the Marui one is still blank fire unless the mag is inserted with force.
What it the issue? I think the Guarder valve knocker need soem mods, but how?
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