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

Colt’s 1849 London Pocket
Colt’s 1849 London Pocket

I Have This Old Gun: Colt’s 1849 London Pocket

Encouraged by his generally positive reception at the Great Exhibition in 1851, and always anxious to gain elusive government contracts, Colt, in 1853, opened a London factory where he would make a number of revolvers, including his popular 1849 Pocket Model.

Modern Cowboy Gun: The Savage Arms Revel Tactical

Savage Arms jumped back into the lever-action market in 2024 with its rimfire Revel platform, and this year, the company is expanding with a feature-rich Revel Tactical model.

Hunting with a Legend: Sierra’s MatchKing X Bullet

Sierra’s MatchKing is a highly respected target bullet, but for the new trend of long-range hunting, the design needed to offer improved terminal performance. Enter the MatchKing X.

The Armed Citizen® Oct. 19, 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.

Review: Stoeger STR-9 Thinline

The new Stoeger carry gun loses nothing—except some weight and girth. This is the Stoeger STR-9 Thinline.

5 Great Products for Your Next Hunt

These five products will help boost your chances at success in the field.

Interests



Get the best of American Rifleman delivered to your inbox.