Post 8475, "AFR" is from 1985.
1985 – AAV, ACC, ACJ, ADA, ADP, ADZ, AEF, AEH, AEM, AER, AEW, AFB, AFK, AFL, AFN, AFR, AFS, AHA, AHB, AHC, AHJ, AHP, AHS, AHT, AHV, AJB, AJD, AJJ, AJH, ALA, ALB, ALC, ALU, ALV, ALW
Supica, Jim,Nahas, Richard. Standard Catalog of Smith & Wesson (Standard Catalog of Smith and Wesson) (p. 492). F+W Media. Kindle Edition.