Rifleman Q&A: S&W M629 Markings

by
posted on December 23, 2022
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

Ruger “Six” Series Revolver
Ruger “Six” Series Revolver

Exploded View: Ruger “Six” Series Revolvers

The Ruger Security-Six, Police Service-Six and Speed-Six double-action revolvers, introduced in 1970 and produced through 1988, innovated in design and construction in such ways as to challenge that period’s status quo regarding the modern wheelgun’s strength and simplicity.

New For 2025: Bergara BMR-X Steel & BMR-X Carbon

The Bergara Micro Rimfire line has now advanced in 2025 with an X factor and two new subvariants made with ultimate precision in mind.

The Armed Citizen® Jan. 27, 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.

New For 2025: FN Reflex XL

FN America stretched its Reflex micro-compact a bit in length and height for 2025, creating the new Reflex XL, which has an increased magazine capacity.

Preview: Full Forge Gear Shooter’s Cut Armor Plates

Full Forge Gear recently leveraged its knowledge of heavy-duty materials to leap into the personal-armor market with the introduction of the Shelter plate carrier and two different lightweight plate options compatible with it.

New For 2025: Staccato HD

Staccato has elevated the 2011 handgun concept by incorporating some redesigns for 2025, notably making its M1911-style design compatible with Glock double-stack magazines.

Interests



Get the best of American Rifleman delivered to your inbox.