Local law enforcement around here use AR type Carbines and 5.56 Speer Gold Dots. If I were to use a 5.56 AR for home defense, I would start there. (1) Someone performed some sort of at least cursory examination of options avalible. (2) Not being an expert, you put your trust in the product used by your local contabulary. Should be difficult for an ADA to second guess.

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Certified Curmudgeon