Rifleman Q & A: What is a S&W “Flat Latch”?

by
posted on June 19, 2019
** 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. **
latch1.jpg

The early S&W Chief’s Special (above) had a flat thumb latch (arrow) for releasing its cylinder, which is different from the style used on most of its models (l.).

Q: I recently saw a gun advertised for sale described as “a Smith & Wesson Flat Latch.” I thought I knew all the S&W models, but I have never heard of this one. What is it?

A: The “flat latch” term is sometimes used to describe the earliest versions of the S&W Chief’s Special, which was introduced in 1950; it became the Model 36 in 1957 when S&W switched to numerical designations for its handguns. The flat latch, used only on Chief’s Special/Model 36 snubbies and their J-frame variants made from 1950 until 1966, was simply a modified, “flattened” design of S&W’s more prolific concave, checkered thumb latch that unlocks the swing-out cylinder of their revolvers.

According to S&W historian Roy Jinks, “The flat latch was used on the early Chief’s Specials to keep them as flat [as possible] and [make them] easy to slide in and out of various pockets. The company never referred to it as a flat latch; that is a term the collectors have since dubbed it.”

Prior to the appearance of the flat latch, S&W revolvers, starting with the K-frame in 1899, sported a now-familiar concave, checkered thumb latch. As Jinks notes, after 1966 the company changed to this standard-style thumb latch for its Model 36, as it was deemed easier to use. However, the flat latch continued to be installed on the Model 36 for a brief period after 1966, until the supply of parts ran out.

It is interesting to note that current S&W revolvers use a semi-triangular sloped thumb latch, while their re-issued “Classic” guns use what the catalog now refers to as a “Classic style thumb piece” which, of course, is the old-style concave, checkered thumb latch. Smith & Wesson flat latch Chief’s Special/Model 36 revolvers are an interesting variation for the collector, although generally speaking, they do not add appreciably to a gun’s value.

--Rick Hacker

Latest

US Palm STORM CAT4 01
US Palm STORM CAT4 01

Storm on the Horizon: US Palm's Storm Cat4 Rifles & Pistols

Known primarily for its line of AK-platform accessories, this year, US Palm branched out with a full line of AR-style rifles and pistols, all of which have a unique feature set.

Review: Axil XCor Pro Hearing Protection

These do-it-all earbuds from Axil actually do it all.

Federal's New 6.5 Creedmoor +Peak: The Peak Alloy Case Goes Mainstream

Federal introduced its high-pressure Peak Alloy case design with the 7 mm Backcountry in 2025. Now, the company is incorporating it into high-pressure 6.5 Creedmoor loads with the +Peak design.

I Carry: Springfield Armory Echelon 4.0FC in a JM Custom Kydex Holster

In our latest "I Carry" video, a Springfield Echelon 4.0FC is outfitted with Aimpoint's new COA enclosed-emitter red-dot optic, and to carry this optic-equipped handgun, we've selected a JM Custom Kydex holster.

The Armed Citizen® June 5, 2026

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

Multi-Caliber MK24 to Replace SCAR-H For SOCOM

U.S. Special Forces will soon be replacing their 7.62-NATO-chambered SCAR-Hs with a new, barrel-swapping MK24 Mid-Range Gas Gun-Assault (MRGGA) gun capable of running either 7.62 NATO or 6.5 Creedmoor.

Interests



Get the best of American Rifleman delivered to your inbox.