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Lahti M-35 - Finnish military model.

Husqvarna M/40 - Swedish military model (simplified L-35, manufactured under license).

Husqvarna M/40 - major parts.

The L-35 pistol had been developed by the Finnish designer Aimo Lahti and manufactured by Finnish company VKT from 1935 until 1985 or so. It was adopted as a standard sidearm for Finnish army in 1935. In 1940, Sweden purchased a license for Lahti pistol, simplified it and began production as a Husqvarna M/40 pistol. Due to simplification and poor quality of steel used in M/40, these guns tended to crack when fired 9mm "submachinegun" ammunition, and also M/40 were less reliable than original L-35s, so in the 1980s almost all M/40s were recalled from military service and replaced by older m/07 pistol (licensed Browning M1903 pistols) as an emergency feature. Later, Sweden forces adopted the Glock 17 as a standard service sidearm.

Techically, L-35 is a recoil operted, locked breech pistol. It uses short recoiling barrel with barrel extension of rectangular cross-shape. Inside that extension the bolt is located, also of squared cross-section. Bolt and barrel extension are intrlocked by wertically movable locking lug, which is cammed out of engagement when hitting the frame after a short recoil. The L-35 is a concealed hammer fired, single action gun, that featured manual safety at the left side of the frame. On the top of the barrel extension there is a loaded chamber indicator. another intersting feature of the L-35 is a bolt accelerator, which gives to the bolt additional energy to operate in extreme cold or dirt.

The Husqvarna M/40 was diifferent from the L-35 in some respects: first, it has larger trigger guard; second, M/40 had no loaded chamber indicator; third, and most important, M/40 lacked the bolt accelerator, which lead to the decreased reliability. The backstrap of the grip of M/40 also had been cut for removable shoulder stock / holster. The M/40 pistol had been manufactured during the 1940-1946, with total of less than 100.000 pistos.

On the other hand, the original L-35 was extremely reliable and robust gun, with the only drawback of being slightly too heavy.

 

Lahti M-35 - Finnish military model

 

Husqvarna M/40 - Swedish military model (simplified L-35, manufactured under license)

 

Husqvarna M/40 - major parts

The L-35 pistol had been developed by the Finnish designer Aimo Lahti and manufactured by Finnish company VKT from 1935 until 1985 or so. It was adopted as a standard sidearm for Finnish army in 1935. In 1940, Sweden purchased a license for Lahti pistol, simplified it and began production as a Husqvarna M/40 pistol. Due to simplification and poor quality of steel used in M/40, these guns tended to crack when fired 9mm "submachinegun" ammunition, and also M/40 were less reliable than original L-35s, so in the 1980s almost all M/40s were recalled from military service and replaced by older m/07 pistol (licensed Browning M1903 pistols) as an emergency feature. Later, Sweden forces adopted the Glock 17 as a standard service sidearm.

Thechically, L-35 is a recoil operted, locked breech pistol. It uses short recoiling barrel with barrel extension of rectangular cross-shape. Inside that extension the bolt is located, also of squared cross-section. Bolt and barrel extension are intrlocked by wertically movable locking lug, which is cammed out of engagement when hitting the frame after a short recoil. The L-35 is a concealed hammer fired, single action gun, that featured manual safety at the left side of the frame. On the top of the barrel extension there is a loaded chamber indicator. another intersting feature of the L-35 is a bolt accelerator, which gives to the bolt additional energy to operate in extreme cold or dirt.

The Husqvarna M/40 was diifferent from the L-35 in some respects: first, it has larger trigger guard; second, M/40 had no loaded chamber indicator; third, and most important, M/40 lacked the bolt accelerator, which lead to the decreased reliability. The backstrap of the grip of M/40 also had been cut for removable shoulder stock / holster. The M/40 pistol had been manufactured during the 1940-1946, with total of less than 100.000 pistos.

On the other hand, the original L-35 was extremely reliable and robust gun, with the only drawback of being slightly too heavy.

Lahti L-39 "Norsupyssy" anti-tank rifle.

The L-39 antitank rifle (official Finnish designation 20 pst kiv/39, unofficial "Norsupyssy" - elephant gun) was developed by famous Finnish arms designer Aimo Lahti on request from Finnish army. Early prototypes were built around proprietary 20x113 ammunition, also designed by Lahti, but in mas production this was changed to more common 20x138B ammunition, which was more powerful, has wider selection of loadings (AP, AP-T, AP-HE, Incendiary etc), and was also common with 20mm AA guns, bought from Germany. About 1 800 of these guns were produced by VKT factory during the WW2, and although 20mm shells were rather ineffective against Soviet T-34 and KV tanks, Finnish army made a good use of this weapon to fight light armor, bunkers and other targets of importance. In 1944, an 'anti-aircraft rifle', known as 20 it kiv/39-44, was developed from the L-39, by adding select-fire capability and simple anti-aircraft mount. It must be noted that Finnish army kept its stocks of Lahti L-39 anti-tank rifles well after the WW2 - many were surplussed and sold to USA in early 1960s and last ones were scrapped or sold as surplus in mid-1980s.

Lahti L-39 anti-tank rifle is a semi-automatic, gas operated weapon. Gas piston is located below the barrel, and a manual gas regulator is provided in gas block. The bolt locking is achieved by vertically sliding locking block, which is installed in the bolt. When in battery, this locking block is forced up by cam surface in the bolt carrier to engage the slot cut in the receiver. After discharge, rearward movement of the gas piston and bolt carrier forces the locking block to fall down and unblock the bolt; after that, bolt is free to recoil along with bolt carrier. One unusual feature of the Lahti L-39 anti-tank rifle is that bolt remains open after each shot, which allows the barrel to cool down faster after each shot. Despite that, gun is fires from closed bolt, and the firing sequence after each shot involves two deliberate actions. First, shooter must squeeze grip lever (located below the trigger guard) to release bolt forward. Once bolt is fully locked, shooter can pull the conventional trigger and fire the gun. Feed is from detachable top-mounted magazines, ejection is to the bottom. To reduce the felt recoil, rifle is equipped with massive muzzle brake and a soft shoulder pad. Standard iron sights are fully adjustable and calibrated between 200 and 1400 meters. Lahti L-39 anti-tank rifle was equipped with unusual "dual" bipod, with two sets of legs, one with spiked shoes for use on more or less hard ground and another with skid-type shoes for use on soft ground or snow.