Perhaps, the questions I'm about to ask are obvious, but bear with me. To those who understand the inner workings of Springfield XD's, I'd like to ask you guys how the various safety features work. First off, as far as I know, there are 4 different "safety" features: 1) trigger safety, 2) grip safety, 3) firing-pin block 4) out-of-battery safety. More @Wikipedia
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