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

SW 1854 30 30 01
SW 1854 30 30 01

Smith & Wesson Model 1854 Now Available In .30-30 Win.

Smith & Wesson expanded its Model 1854 series of lever-action rifles with several .30-30 Win.-chambered variants, just in time for deer season.

Preview: Making The Enfield Pattern 1853 Rifle-Musket

In Making The Enfield Pattern 1853 Rifle-Musket, author Peter Smithurst details the tools and processes used to produce this historically significant firearm.

Gun Of The Week: Charter Arms Double Dog

For this Gun Of The Week episode, we’re on the range with a convertible wheelgun from Charter Arms, and it’s one that goes from .357 Mag to 9 mm Luger quickly and easily. Welcome to the Double Dog.

The Armed Citizen® Oct. 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.

The Robbins & Lawrence Story: Pioneers Of Mass Production

The Robbins & Lawrence company of Windsor, Vt., was an early pioneer in the field of mass production, using machine tools and interchangeable parts to produce firearms for both the U.S. and British governments.

CMP Auctions Move To GunBroker.com

The Civilian Marksmanship Program (CMP) has moved its popular auctions to GunBroker.com, an online firearm marketplace that launched in 1999, to further support the future of the shooting sports and firearm ownership.

Interests



Get the best of American Rifleman delivered to your inbox.