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21 gen 4 slide rust

  1. General Glocking
    So I am likely being a worry wort but I recently bought a G21 Gen 4 (roughly 3 weeks ago). I noticed about 2 days ago that I have 2 small rust spots forming. No wetness. Kept in the case most of the time. Only shot around 50 rds so far with it due to work and other time constraints. I plan...
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