The USA mfg "russian spring knife" in the pic has nothing to do with russian special forces or the real spetznaz issue knife that fires a silent round and is a real rare device.
This was all just marketing BS by the florida knife company about the whole russian thing.
I knew a real spetznaz that lived next door to me with his family.
I asked him about a lot of items like this knife and the shovel etc...He knew nothing of the spring type knife what so ever... but told me about their shooting knife and other very cool items .
The shovel is a real item that they used a lot FWIW. In fact he gave me his issue shovel and its cover...the real shovels are nothing like the cold steel copy.
The US made spring fired knives were sold under names like "KGB" or "Spetznaz" knife. Also called "Springblade", "Florida Knife", "Bloody Mary", "Flying Dutchman", "Ballistic knife".
It was offered in three configurations,there was one with a blade, one with a baton/mace, and one with a grappling hook. On all three the implement was under spring pressure and would shoot off of the handle when a lever was pressed. It became illegal to sell the knife version with a spring (called a Pilum knife), but without a spring it IS LEGAL to buy and sell. The baton and grapple version are 100% legal even with a spring.
These knives were MFG by the Florida Knife co, Spye Knife co. They were sold by various catalogs, including Edge Knife co, Phoenix Systems, and Southern Ordnance (SouthOrd). Prices were as low as $60.
They work OK and would auto stab a person no question.I fired one and it went into a beef side about 3 inches... but are very hard to load with the correct spring and quality went way down as time passed until they were just a shadow of their original quality...the lock is very dangerous as its a hair trigger when the pin is not in its place.
As a side note the very first versions sold were very good quality and had a VERY powerful spring that was held in place at the bottom of the handle the later versions got worse in qiality as time went on and had a spring that was at about 75% or less the power and could be pulled free from the handle.