Could be, depending on the size/shape of a given pocket, whether or not the wearer has thunder thighs, etc.
I have carried one in a front pocket for so long now, I feel wrong if it isn't in there. I had a PM9 at one time, and it carried just as nicely. I decided to stay with the revolver, however, as the odds of having to make a contact shot with my pocket gun are quite good... and self-loaders don't fare well in that venue.
The real key to comfortable, usable pocket carry is the holster. You can perhaps get away with using an Uncle Mike's sausage sack, but a properly constructed leather example is SO much better.
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