Ed Schroeder’s Military Intelligence Daily: The scuba diving spy’s weapon of choice: The guns that can shoot underwater

The P11 Underwater Pistol, originally designed in the 1970's

The P11 Underwater Pistol, originally designed in the 1970’s

The first weapon is believed to be Germany’s Heckler & Koch P11 Underwater Pistol.

Originally designed in the 1970’s, it fires up to five fin stabilized, rocket propelled darts that are self contained inside individual barrels.

Since ordinary-shaped rounds are inaccurate and have a very short range when used underwater, this pistol fires steel darts about 10 centimeters (3.9 in) long.

It has five barrels, each of which is loaded with a cartridge.

After firing all five cartridges, the barrel unit must be sent back to its manufacturer for reloading.

The darts measure 7.62mm X 100mm and are effective underwater to about 50 feet near the surface, with decaying range the deeper you descend into the abyss.

Above water, the P11 has a range of about 100 feet, although experts say its accuracy is poor.

Russia also developed underwater weapons.

The SPP-1 Underwater Pistol was made in the USSR for use underwater by Soviet frogmen as an underwater firearm.

It was developed in the late 1960s and accepted for use in 1971.

It fires a round-based 4.5 millimeters (0.18 in) caliber steel dart about 115 millimeters (4.5 in) long.

Russia continued to build underwater weapons, and unveiled the ADS.

Designed by Russia’s Tula Instrument Design Bureau, it can be fitted with silencers and  grenade launchers, and fire both on land and in water.

It is equipped with a 40 mm grenade launcher which has a range of 400 m.

The underwater 'Kalashnikov': Russia showcases its first ever efficient amphibious assault rifle, the ADS





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