I found this inside an old Deringer Mach II and im having a hard time believing this cup seal is stock. Any ideas? Thank you.
Name That Cup Seal
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Looks like a Wintec cup seal out of a Thunderbolt. I haven't used them enough to offer any insight on the effectiveness of the shape. The Derringer Mach II was made by Wendell at Wintec so likely the stock cup seal.Comment
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I have a bunch of them, tend to strip out pretty easy. I always thought they were Lapco, Dont know why.Comment
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