Had Hk Tactical...sold it. Owned 3 Glock 21s to date and carry a 30. Simply the MOST SIMPLE gun there is in .45! It is also the fastest. And the most reliable by my experience. Never a jam in an IPSC match or otherwise. You can all have your exposed hammers, dbl action, decockers...when I put my finger on the trigger I want it to go bang and now! No one here has mentioned ergonomics, the Glock has the lowest bore axis. Much better than Sig, Hk (except P7), Ruger, etc. The Glock will do everything the others do but faster. Have you ever had a critical plan fall to pieces? Patton once said "The best plan is one in which you win even if everything goes wrong." That means Glock to me.
-B
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"Every normal man must be tempted, at times to spit on his hands, hoist the black flag and begin slitting throats." H.L. Mencken