I’m looking at a sig probably in 9mm. I have been carrying a little keltec .32 but want something with more stopping power.
There is a decent supply of used police dept Beretta 92’s on the market, some for around $350. Great guns, ultra reliable.
I have a few Sigs.
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My favorite is a P226ST with over 20,000 rounds down the pipe (training mostly).
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Get a good holster, mag carriers, a sturdy belt and get some professional training.
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Don't forget to get a few mags for it. Eight is a good start... more is better.
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Don't forget ammo.