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g21 upper
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  1. Gunsmithing Forum
    I'm building a gen 3 g21(45acp) upper and the fireing pin safety plunger dose not fit in the hole. The fireing pin safety plunger-(.263) and The Hole-(.260) are roughly the same diameter. As both parts are manufactured by two separate companies (not glock). I'm trying to figure out what part is...
  2. General Handgun Discussion
    I'm building a gen 3 g21(45acp) upper and the fireing pin safety plunger dose not fit in the hole. The fireing pin safety plunger-(.263) and The Hole-(.260) are roughly the same diameter. As both parts are manufactured by two separate companies (not glock). I'm trying to figure out what part is...
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