Well, I started this post and was amazed at the response.
So, last week I sent a letter to Smith & Wesson requesting them to consider an M-15 commemorative for Air Force, Army, Navy, Marines and Coast Guard.
No answer yet, of course.
I mentioned that I went by the nom de net Gatofeo, so if you'd like to send Smith & Wesson a postcard or letter to affirm interest, you can refer to me as well. It might jog S&W's memory.
I'm unsure what department ponders such things, so I simply addressed it to the Research & Development Department. I'm sure it will land in the proper hands.
Send a postcard or letter affirming interest in an M15 to honor our branches to:

Smith & Wesson
Research & Development Dept.
2100 Roosevelt Avenue
Springfield, MA 01104

If I get a reply, and a more precise address, I'll post it here again.
Many thanks to all of you!