I did check blowback…
it was not happening at all but my delrin bolt has too much clearance. Maybe measures 0.684 tube 0.693..
no oring on these ccm bolts…
couldn’t find many posts only that people run 0.003 thou diameterical or so…
it was not happening at all but my delrin bolt has too much clearance. Maybe measures 0.684 tube 0.693..
no oring on these ccm bolts…
couldn’t find many posts only that people run 0.003 thou diameterical or so…
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