FAQ.

Poligonalinės, heksagonalinės oktogonalinės graižtvos

There is a sizeable firearms, whose purpose is to graižtvos that it is screwed onto the kulką during sukdamasi and nesivartytų function as a gyroscope, and spike is always directed towards the direction of flight of the trajectory.
Most of the world used the usual graižtvos with stačiakampėmis edges, into which the shot tube travelling as a Rails or įsipjovus kreipiančiosiomis.
Some of the pipes are produced with poligonalinėmis graižtvomis weapons, which do not have corners, simply pipe is unevenly rounded. Other manufacturers instead of circular pipe graižtvas pusapvales produce, which has virtually the same effect as the neapvalus tube. Poligonalinių graižtvų the main advantages are the speed of the longevity of the pipe because the lower, larger projectiles, very easily by the friction of one brushed one's vamzdiis and nepriauga metal or combustion products, because there is no where to užsilaikyti.
Poligonalinių graižtvų heksagonalinės and Oktagonalinės are synonyms. This is one and the same, only notes that u r a Hexa-, and 6-8 graižtvos oka graižtvos.
Poligonalinės pistoletuose graižtvos is all Glock, Tanfoglio Gold Custom model, Vector, snaiperiniame šautuve CP1 at, HK PSG1 and some other models.
Here you can compare what's the Visual difference between the normal graižtvų (left) and poligonalinių graižtvų (right).