I carried a full size Colt M1991A-1 for a while, it concealed just fine. The Colt was in a OWB holster at 4 o'clock, generally under a sport coat. A Chiefs Special was carried as a back up. I didn't find the Colt too heavy or awkward, but then my previous carry gun was a 4" Model 19-7. I later carried a Colt Commander, but didn't think the shorter slide made much of a difference carrying under a sport coat.

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Wheel guns are real guns.