Rifleman Q&A: S&W M629 Markings

by
posted on December 23, 2022
** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. **
S&W M629

Q. I recently acquired a Model 629 Smith & Wesson revolver. It has the 83⁄8" barrel and S&W wood stocks. The yoke has “G23” over “42995,” and on the right side, it is marked with “AYF3198” over “M-629-1.” If I didn’t know it to be a 629, I would swear it was nickel; this is, by far, the brightest stainless gun I have seen.


A. The S&W Model 629 was introduced in 1979 as a stainless-steel version of the popular Model 29. Numerous engineering changes have occurred over the course of its production. The first, designated as the M629-1, occurred in 1982 and involved the elimination of the pinned barrel and chamber rim counterbores, along with a slight increase in cylinder length. The serial number AYF3198 does not help in determining the gun’s age, as there is no published listing of serial numbers by production date although, through research, I believe your S&W was produced in early 1988. The 629-1 was replaced by the -2 version in 1988. 

The twice-occurring G23 and 42995 were likely applied to verify that the yoke and frame were a matched set. Any other markings usually represent inspection and approval at different points of production.

At the time of your revolver’s production, there were no options available for degree of polish. Admittedly, it is possible to find variations in the level of polish due to normal human activity and tolerance of polishing equipment. Unless you are the first owner of the gun and can verify the level of finish, I suspect that the shiny appearance you describe was likely achieved through the efforts of a previous owner.

—John W. Treakle, Contributing Editor

Latest

Steiner Predator: 4S 4-16X 44 mm
Steiner Predator: 4S 4-16X 44 mm

Review: Steiner Predator: 4S 4-16X 44 mm

The benefit of a lightweight rifle is lost the moment you top it with a clunky, overweight optic, particularly a lengthy one. To that end, we are starting to see an emphasis on riflescopes that are less cumbersome when mounted, such as Steiner’s Predator 4S.

A Carry-Ready Classic: Outfitting A Ruger Speed-Six Revolver

Already a fan of Ruger’s long-discontinued double-action Security-Six, Police Service-Six and Speed-Six revolvers, I simply couldn’t pass up the opportunity to acquire one of the latter in 9 mm Luger when an unfired, 42-year-old example turned up at a gun show.

Old Glory Bank Sponsors 2025 National Youth Shooting Sports Conference

Old Glory Bank, which provides banking services to NRA-affiliated clubs and associations, served as the presenting sponsor for the National Youth Shooting Sports Conference in October.

Shooters, Listen Up! Take Hearing Health Seriously

When it comes to the five senses, hearing is one of the most susceptible to damage from the shooting sports. Now, the latest electronic technology gives compromised ears a new lease on life—and protects them from further harm.

The Armed Citizen® Nov. 17, 2025

Read today's "The Armed Citizen" entry for real stories of law-abiding citizens, past and present, who used their firearms to save lives.

NRA Supports Hunters For The Hungry Programs

In 2025, Hunters for the Hungry programs across the United States will have extra support from the National Rifle Association, thanks to NRA Foundation donors.

Interests



Get the best of American Rifleman delivered to your inbox.