A Russian arms manufacturer has solved that infuriating age-old assassination problem we all encounter on a regular basis.
What do you do when the enemy you've been relentlessly pursuing across land dons a wetsuit and goes sub-aqua?
Well fret no more because Russia's Tula Instrument Design Bureau (KBP) has created what they claim to be the world's first amphibious assault rifle.
The ADS 5.45mm automatic has been developed for Russia's elite forces, the Spetsnaz.
Nikolay Komarov of KBP, said: "Until now underwater fighters were compelled to use two types of weapon – for use under water and the Kalashnikov for overland firing.
"Now it is only necessary to replace the ammunition magazine."
But the necessity of such a weapon has been called into question by some.
Pavel Felgenhauer, a Moscow-based defence analyst, told the Times: "It is a very specialised weapon, where you would need to have two opposing armies of frogmen shooting it out underwater — something I’ve only ever seen in James Bond movies."