Systems from UK firm Succorfish underwent a week of tests with US Navy SEAL divers.
Rostec delivers underwater pistols and assault rifles
Rosoboronexport, a subsidiary of Rostec Corporation, has completed the delivery of 4.5mm SPP-1m underwater pistols and 5.66mm APS underwater assault rifles.
The weapons have been delivered to an undisclosed foreign partner.
The SPP-1M underwater pistol and the 5.66mm APS underwater assault rifle were developed by TsNIITochMash, which is also a subsidiary of Rostec Corporation.
The SPP-1M pistol can hit underwater targets at a range of up to 17m when fired underwater or up to 20m when fired above the surface.
The specialised underwater APS assault rifle can hit targets at a range of up to 30m underwater and up to 100m when fired above the water.
Both weapons fire steel darts with a calibre of 4.5mm and a length of 120mm.
The darts have a pointed conical head, with a special blunted tip. This design creates a cavity of air in front of the bullet when it moves underwater at high speeds, reducing water resistance and stabilising the cartridge.
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