Skip to main content

Mann .25ACP Model W.T.

Fritz Mann, of Mann Werkzeugfabrik in Suhl, Germany, set out to make the smallest .25ACP ever, resulting in the most compact, thin, and concealable .25 ACP ever made.

Mann .25ACP Model W.T.
The Mann stakes a claim as the smallest .25 ACP ever, just four inches long, 2.75 inches high and 0.56 inch wide at the slide. It used an internal bolt, with an annular ring in the chamber to retard blowback.

The most compact, thin, and concealable .25 ACP ever made was brought into the world in 1918 by Fritz Mann of Mann Werkzeugfabrik in Suhl, Germany. Previously the firm had made parts and components for the gun trade in Suhl as well as miniature watches and lockets. Fritz Mann now set out to make the smallest .25ACP ever, and he succeeded with a design so advanced that it ran into immediate sales resistance.

The new gun was extremely ergonomic and easy to hit with, but it was shaped more like a T than a conventional Browning type vest pocket pistol. It was so thin it made all other .25 autos seem bulky and clunky by comparison. Only four inches long and weighing just 87⁄8 ounces, it stands 2.75 inches high and is only 0.56 inch wide at the slide and 0.74 at the grips.

Mann-25-ACP

Mann dispensed with the conventional bulky slide and used an internal bolt and an annular ring in the chamber to retard blowback, as there was insufficient bolt weight for a conventional blowback action. This made the Mann the only retarded-blowback action .25 ACP produced.

The gun is a natural pointer, and the Mann is one of the easiest .25 ACP pistols to hit with. There is a modern-looking gutter channel for sights and that is more than is adequate at the ranges you use a .25 ACP.


The extreme flatness of the Mann .25 ACP made it a natural for deep cover carry. In the 1920s the U.S. issued the big greenback dollar bills, and wallets had to be bigger to accommodate them. The little Mann was often found discreetly carried upside down inside the wallet. Many pants had a watch pocket inside the waistband where the little gun was carried and covered by the belt for additional cover. These rudimentary carry options meant people kept dropping the pistol and breaking the hard rubber grips, so Mann came out with aluminum grips.


Mann-25-ACP

Cleaning is easy. Just pull the bolt back and twist the barrel to take it out. Further disassembly gets hard, and the mainspring is a monster to deal with. A lot of folks took to just removing the barrel for cleaning conventionally and then just swishing the rest of the gun around in a pan of gasoline then drying and oiling it.

Fritz Mann’s design was everything he wanted it to be and far outclassed its rivals. Unfortunately the average buyer wanted something conventional and did not appreciate sweeping advances in firearms design. As a result the most advanced .25 ACP of all time went out of production in 1924, and the firm began making conventional appearing .32 ACP and .380 ACP pocket pistols that were still smaller than their rivals.

The depression in the Weimar Republic took its toll on sales across the board in Germany during this period, and the firm went out of business in 1929.

GET THE NEWSLETTER Join the List and Never Miss a Thing.

Recommended Articles

Recent Videos

Federal's new.30 Super Carry pistol cartridge offers the equivalent of 9mm Luger performance with recoil and muzzle blast comparable with 9mm. Here's a first look.
Handguns

First Look: Federal .30 Super Carry Pistol Cartridge

Scott Rupp and Richard Nance correct some common shooting advice.
Learn

Bad Shooting Advice

Rich Nance shows us a drill that helps with target transition and accuracy.
Learn

Skills Drills - 3 Second Headshot

It is important to train in various shooting positions. Rich shows us some kneeling positions here.
Learn

Shooting from Kneeling

Scott Rupp highlights the Taurus GX4.
Handguns

Taurus GX4

Richard Nance shows off this easy to carry flashlight from Streamlight.
Gear

Streamlight Wedge

In early 2021, Taurus introduced the GX4, its entry into the micro-compact concealed carry pistol market. Now the company has added red-dot sight capability with the new T.O.R.O. (Taurus Optic Ready Option) version.
Handguns

First Look: Taurus GX4 T.O.R.O. Optics-Ready Micro-Compact 9mm Pistol

Widely known for their duty retention holsters, Safariland is bringing the security and safety of their LE products to the civilian world with the 575 GLS holster.
Gear

Safariland Holsters

Smith & Wesson has expanded their M&P Shield Plus pistol line to include a 3.1-inch optics-ready slide option. Scott Rupp, editor of Handguns, is with Matt Spafford, of Smith & Wesson, to check out this "sweet spot" optics-ready concealed-carry pistol.
Concealed Carry

Smith & Wesson M&P Shield Plus Pistol Series Expanded with Optics-Ready Versions

Handguns Magazine Covers Print and Tablet Versions

GET THE MAGAZINE Subscribe & Save

Digital Now Included!

SUBSCRIBE NOW

Give a Gift   |   Subscriber Services

PREVIEW THIS MONTH'S ISSUE

Buy Digital Single Issues

Magazine App Logo

Don't miss an issue.
Buy single digital issue for your phone or tablet.

Buy Single Digital Issue on the Handguns App

Other Magazines

See All Other Magazines

Special Interest Magazines

See All Special Interest Magazines

GET THE NEWSLETTER Join the List and Never Miss a Thing.

Get the top Handguns stories delivered right to your inbox.

Phone Icon

Get Digital Access.

All Handguns subscribers now have digital access to their magazine content. This means you have the option to read your magazine on most popular phones and tablets.

To get started, click the link below to visit mymagnow.com and learn how to access your digital magazine.

Get Digital Access

Not a Subscriber?
Subscribe Now

Enjoying What You're Reading?

Get a Full Year
of Guns & Ammo
& Digital Access.

Offer only for new subscribers.

Subscribe Now