Loading and firing the Russian SPP-1 underwater pistol gun

The SPP-1M underwater pistol is designed to destroy enemy personnel at ranges of up to 17 m under water (depending on diving depth) and for self-defenсe above surface at ranges up to 20 m. Firing under water is possible from all swimmer positions as well as against surface targets from under water. The pistol is intended for combat swimmers. This non-automatic pistol has a four-barrel cluster. To load and unload the pistol, the barrel cluster is tipped up with its breech block in the upward position (similar to hunting rifles). Four rounds in a clip are simultaneously put into the barrels. Safe pistol handling is ensured by a manual safety lever used to block the trigger and hammer. Special coating is applied to protect the pistol in sea water.
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