But but but hahaha... S&W doesn't make items to support other gun maker's products. Glock doesn't either.

I'm not saying you are mistaken for wanting one or seeing the use for one, and I also agree that S&W could sell them. But if we are compiling a list of what S&W could do and should do, we have the potential to use up all the data storage the internet has to offer.

I thought the question was "why doesn't S&W offer these?" and the likely answer is because S&W doesn't make a 9mm carbine but a BETTER answer is "because S&W doesn't much care what folks think... reference the lock on all the revolvers that zero in the market actually want."