Weaponry throughout the Games - Special handguns

Very interesting and peculiar weapons....

4.1 Race Gun
A race gun heavily modified for use sporting competitions for need of speed and accuracy. In order to maximize rapid fire performance, uses reduced charge ammo that provides just barely enough pressure to fire. Naturally, this also results in relatively low stopping power. Uses ".38 Super" ammo. Holds 19 rounds. Easy to fire in rapid succession and deliver shots in a tight spread. Its bullets can ricochet off surfaces in a similar way to the Single Action Army. There are no modifications available for this weapon. Can be obtained by completing the game once on any difficulty. 

4.2 PSS
A silenced pistol that uses a special type of soundless ammo. The piston is located within the cartridge, trapping the firing gas inside. This makes the ammo virtually silent and eliminates the need for a suppressor. Although the PSS is amazingly quiet and easily concealed, it achieves its silence at the expense of performance, and the magazine size is a paltry 6 rounds, but this does not wear down its effectiveness at stealth missions.

4.3 Solar Gun
This is perhaps the most interesting gun...ever. Its from another game that Konami made for the game boy advance that used a solar chip to detect sunlight and that would effectively determine the power of weapon in game.
 This gun can be used for rapid fire shots with low potency. Charging the gun up to the point where it beeps and light stops collecting on the barrel you can fire it at the enemy making them fly a good 10 yards dropping all their ammo, weapons and any other things they may be holding, this does not kill the enemy nor does it make the enemy fall asleep, it merely knocks out the enemy. There are no modifications available for this weapon. It can be obtained by obtaining the Boss Dolls after defeating the FROGS and B&B Beast forms without using lethal weapons. The Beauties can be dispatched with conventional means.
Despite the fact that it can potentially be the most powerful non-lethal weapon in Snake's Arsenal, it is limited by its unique ammunition: sunlight. The Solar Gun runs on a battery that can only be recharged with direct sunlight. While in the first two acts sunlight is plentiful, the next three acts take place in environments where there is little to no sun, limiting the number of times he can use the gun. Fortunately, a full energy meter is provided every act, so with careful management, the Solar Gun can be used effectively.