The Jäger Pistol
The Jäger pistol has a simple striker fired, blowback action with the recoil spring surrounding the barrel, typical of many 7.65mm pistols of the era. The revolutionary feature that Jäger introduced was a frame composed of four parts. The two die-cut flat side-plates required only minimal milling on the inside surfaces. The forged-steel front and back straps were also finished with limited machining. They are held between the side-plates by three screws and two spring loaded pins. The front strap, which extends to the muzzle, includes the trigger guard and holds the trigger and its spring. The back strap contains the lockwork (sear, sear spring and safety) and the butt-mounted magazine release and its spring. The trigger bar, which also serves as the disconnector, slides in a diagonal recess milled into the right side-plate. The manual safety blocks the movement of the sear when it is engaged by rotating rearward. There is no magazine safety and no means to hold the action open. The barrel has a rectangular chamber block with an integral feed ramp.
Two types of magazines were used. The most common has a tapered steel spur attached to the surface of the base-plate extending to the front. The spur was for depressing the front and back strap dimpled pins when field stripping. The bottom of the front strap was grooved to provide clearance for the spur.