I carried a S&W j-frame of one model or another as an on-duty/off-duty BUG for most of my 37 year career. I still often carry one today. One of my current j-frames I carry is a M&P 340, very similar to the 442. They are great little revolvers for concealment. With a little polishing (preferably by a trained gunsmith) and hammer and recoil sping replacements, they are much improved. All of mine have been accurate, completely reliable and comfortable to carry. I stress that you have any improvements done by a competent gunsmith if you're not familiar with these models.