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 American Gen2 Patrol 1
Ruger American Gen2 Patrol 1

Review: Ruger American Gen II Patrol

Ruger's American rifle line represents a good balance between cost and performance, and the latest generation offers many welcome upgrades, as seen on this Gen II Patrol model in 5.56 NATO.

SOG Knives Celebrates 40 Years in Business

SOG Knives, which was established by Spencer Frazer in 1986, is celebrating its 40th anniversary in 2026.

The History of Repeating Arms Gun-Control Groups Don’t Want the Courts to Know

This episode of NRA’s The Armed Citizen Podcast refutes one of the biggest false claims gun-control groups and the politicians they support repeat ad nauseam by asserting that the Founding Fathers could not have imagined the AR-15.

Rifleman Review: Springfield Armory Kuna

Initially designed by Croatian manufacturer HS Produkt to fulfill a military contract, the Kuna has since arrived on U.S. shores through Springfield Armory as a semi-automatic, large-format handgun chambered for the 9 mm Luger cartridge.

All-American AK: The Bear Creek Arsenal BC-47

North Carolina’s Bear Creek Arsenal makes AR-15s, 10/22s and handguns, but new for 2026, it is introducing its first AK-pattern firearm with the BC-47.

Review: TNW Firearms ASR 1911

Reliable pistol-caliber carbines, especially with quick-caliber-change capability, are fun, and the ASR 1911 from TNW Firearms is one of the most unique of the bunch.

Interests



Get the best of American Rifleman delivered to your inbox.