Lahti and Lugers are somewhat similar, the barrel extension, the grip angle, etc. Lahtis have that accellerator spring to make them close good in cold weather and are a BEAR to put back together from just separate parts, one of my gun books say they are almost impossible to put back together without special jigs. They are a pleasure to shoot as they are heavier than a Luger and recoil is light. Look at the thickness of the trigger guard! Here is a side to side comparison of the Lahti and Luger frame/barrel
