A few years ago I had an idea for a S&W revolver line. The idea was medium frame large bore CCW and IDPA revolver. I was looking at my M65 3" and wanted a 44 Spl version with a little longer barrel and night sights. So I sent in a letter to smith asking if they could or would make an:
L Frame.
5 Shot 44 Special / 44 mag if the frame could handle it, 41 Mag, 45 colt, then make full moon clip versiond for 45acp and a 10mm / 40 S&W version for IDPA and CCW.
Round butt
4" full under lug. (thought the extra few onces would help with recoil for the 10mm, 41mag and 44 mag versions.)
Fixed novak Night sights dove tailed into the gun.(just like they do on their auto lines)
Wrote smith about it. Telling them they could have my ideas.
They came out with the 669 that was close but not exact and only in 44 Spl.
The nite shade series are closer but none has the 3 or 4" barrel, they do have the night sights but not dove tailed into the frame.
Once they came out with the 357 J frame Model 60 with the 5" barrel I thought it would be a great idea to have one in 44 Mag on a L frame.
I was thinking of getting the M10 HB to see if it can be done as a concept and later find an L frame and build what I want