Originally Posted by tailgunner6

I saw this thread and wanted to add a variant of 170222 that I own. I noticed the chart doesn't list my s/n prefix; mine is s/n BCL0001. I lettered my gun and Jinks mentions my gun was shipped May 22, 2002.

When I searched for my 945-1 variant, I did find an old auction listing for a pistol almost identical to mine with the BCL prefix s/n (BCL0062):

Performance Center Smith & Wesson Model 945-1 semi-auto pistol, .45 ACP cal., 5” barrel, satin and

I did post a pic of my gun many years ago and there's a website that is currently using it (I obscured the s/n prefix so it just shows "0001"):

Gun Advisor Pro | Smith & Wesson Model 945

Looks like the BCL s/n prefix guns use a Wilson Combat adjustable rear sight.