This photograph shows in detail the locking system of this arm. The bright surface bearing the figure "Z" is the breechblock. The extractor is mounted in the top of the breechblock. A long metal locking arm is mounted to the rear of the breechblock on each side of the recoil spring and its guide. At the moment of firing these locking lugs hold the breechblock forward while they are pressed at their rear firmly against the side of the receiver wall by the heavy guide between them. In this system, the locking is too far back from the head of the cartridge case to be really satisfactory. This was purely an evolutionary design.
This was the "Selbstlade-mit Verriegelung durch Stutz-flappen." (Self-loader with lock through short flaps.) Barrel and breech mechanism recoil locked together. When pressure drops to safe limits, short steel flaps (or wings) below the breechblock are cammed out to push the locking levers out of the path of the breechblock. The barrel hits its stop and the breechblock travels back alone.
MODEL 06-08, MAUSER SEMI-AUTOMATIC RIFLE. TOP VIEW WITH DECK REMOVED AND FULL
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