The Lahti

by
posted on September 24, 2014
** 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. **
lahti1.jpg

Shortly after I got into the gunwriting business, I worked on a 9 mm book project with the late Dean Grennell. One of my contributions to the book was to get ahold of every 9 mm pistol I possibly find and fire them under the same circumstances. I was greatly assisted in this effort by a local collector who seemingly had one of everything and was willing to let me take them out and shoot them. Among things like a Red Nine Mauser, MAB PA15, Artillery Luger and others, I got to fire a Lahti. You never see these big brutes these days, but they were common back then.

Designed in Finland in the 1930s, the Lahti was a 9 mm service pistol intended for the special needs of the Finnish military forces. In a country with severe winter weather conditions, small arms work best when designed for snow and ice. The Lahti was an ingenious recoil-operated pistol that worked on the basis of a massive bolt moving back and forth in a machined steel receiver. To lock the bolt in place at the instant of firing, the Lahti used a steel locking block in the shape of an inverted “U.” It was cammed upward into a recess in the roof of the receiver. Also, the Lahti used an accelerator lever, similar to the one John Browning put in his machine guns, to give the recoiling parts an extra bit of rearwards thrust. In theory and possibly fact, this insured proper function in extreme low temperatures.

The Finnish-designed and made Lahti was quickly accepted as a reliable and accurate pistol. It was so good that the Finns licensed the rights to make the gun in Sweden for that country’s armed forces. Most authorities agree that the Swedish modifications to a proven design were ill-advised and did not result in a pistol of the same quality. As a matter of fact, one reliable source (the Hogg & Weeks Pistols of the World) rates the Finnish Lahti as a strong competitor with the Sig P210 as the best service pistol in the world. Heady praise.

Latest

Ruger Mini-14 GB
Ruger Mini-14 GB

I Have This Old Gun: Ruger Mini-14 GB

When initially released in 1973, the Ruger Mini-14 quickly made a name for itself on the recreational-shooting market. Designed by L. James Sullivan and Bill Ruger, it combined the best attributes of the M1 Garand and the M1 carbine with a “rock-’n’-lock” detachable box magazine inspired by the M14.

Preview: Mec-Gar Glock Magazines

Mec-Gar took its expertise in metal-formed magazines and applied the technology to one of the most ubiquitous designs on the market: Glock. Now you can have incredibly durable metal magazines for your 9 mm Luger-chambered Glock handgun, as all of Mec-Gar’s offerings are made using heat-treated carbon steel.

Enough Gun: Weatherby's New Mark V Frontier & Dangerous Game Rifle

Weatherby's new Mark V Frontier and Dangerous Game Rifle (DRG) are ultra-reliable, accurate and devastatingly powerful rifles designed to go after the nastiest creatures on four legs the world has to offer.

Preview: Safariland Pro Impulse Bluetooth

One of several new additions to Safariland’s Impulse line of hearing-protection solutions, the Pro Impulse Bluetooth is a set of Bluetooth-enabled earmuffs that is equally easy on your ears and your pocketbook.

Gun Of The Week: Smith & Wesson Model 19 Carry Comp

In our latest Gun Of The Week episode, we’re on the range with the Smith & Wesson Model 19 Carry Comp, a medium-size revolver chambered for .357 Magnum.

The Armed Citizen® Dec. 26, 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.

Interests



Get the best of American Rifleman delivered to your inbox.