The first letter N = NEF, H = H&R, the second letter denotes year of manufacture. WH=1995-2001 Wesson & Harrington rifles and shotguns, six digit serial numbers run consecutive, no change in prefix for different years, H&R would be the only source to determine actual year of Mfr.
Y=2008 serial number prefixes changed in May 2008 and on, CBA for SB2 and CAC for SB1, the only source for build year is to call and ask (866)776-9292.
Second letter of prefix on NEF or H&R starting with N or H.Ī= 19861987 H&R will only fit the original chambering(replacement for defective rifle), 357Mag, 44mag, and shotgun barrels to these frames Year starting serial number prefix letters on H&R Inc:ġ972 AJ (Huntsman introduced with screw-in breech plug, later changed to push-in)ġ973 AL (first handgun transfer bar mid year)ġ977 AR (transfer bar on rifles and shotguns)
