If you wanted a round butt there was the Model 10 and 12 in 2", no adjustable sites. These days any 2" K frame is in high demand for concealed carry.

One of the guns I regret selling. A rough around the edges 2” 15 can’t recall the dash but a later non pinned barrel bought for under $300.
Over on the smith and Wesson forum, many talk about these 2” 15’s shooting about as accurately as a 4”
My experience agrees. I bought a 4” figuring it would be better ( more accurate and full length ejector rod) but now wish I had ( the much harder to find) 2” back.

Goes back to my initial point. These 2" K frames are more shootable than many would imagine.