I like the SW1911PD with the 4.25" barrel. For me it is a good size for carry, light enough to carry all day, easy to conceal, and has been incredibly reliable. I did replace the trigger with a short trigger and the full-length guide rod and plug with the standard/GI versions. My second choice would be the SW1911ES due to the shorter grip, which would make it easier to conceal if that were an issue (but since it isn't an issue for me, I don't have one).
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