Small arms

Always the principal and most massive weapons will be private. In the old days - this was the only way to kill the enemy. Over time, these became more and more, but personal weapons still will never go to second place. Even the most sophisticated bomb without personal weapons will not be able to be sent - simply capture.
Now personal weapons - small or firearms. The most widespread type of military small arms - assault rifles. They are characterized by relatively low weight, high rate, emkimi shops. They can perform rapid rush to the battlefield, a sweep large areas of up to several hundred meters. These properties could not best suited for combat in different contexts: from the city to the field.
There «massive» special machines. The latter are designed to carry out any special operations or of combat in specific circumstances. For example, there are machines for shooting underwater, which have been developed to combat diver-podryvnikami. Appointment of assault rifles determined by its design decisions. The most simple criterion - the size (short assault rifles - to battle on the premises).
Not all military useful to provide automatic, so they use more light firearms: a pistol and submachine gun. The gun came a little later shotguns and was intended for defense. And now use it as a second weapon, snipers, machine-gunner, ognemetchiki, pilots, etc. It is indispensable because of its size in the exploration, with its supplying equipment and silent besplamennoy shooting. Sometimes as a reserve arms of a submachine gun. But using it as a major weapon. It is useful in urban environments where not required a particular range and accuracy, but required rate.
There has lost its relevance of the use of rifles, but now they are not massive weapons, and elite - sniper. These rifles are distinct from more rigorous enforcement, special design and materials. They are provided with various devices, increases the visibility goal (optical, night vision devices, etc.).
To increase the power Infantry Rifle using machine guns. They can be hand-held and mounted. Hand used similar automatic, but should be mounted on the life of reinforced rigid construction.