I am looking at getting a Gen4 27, already have a gen3 19.
A lot of people hate on them, but I shoot a Glock better than I do any other handgun (wish I knew why).
Congrats on the purchase.
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.22LR, 9x19, .40 S&W, .45 ACP, .45 Colt, 5.56x45, 7.62x39, .303 British, 308 Winchester, 30-06 Springfield, 7.62x54R, 8mm Mauser, .50 BP