Offset RTS, rapid transition sights set, 45 degree, metal, SHSSet of front and rear sights from SHS. Iron sights are inclined relative to the base by 45 degree and are used for example in combination with another optical riflescope or red dot sight that the view of the conventional mechanical sights clogs. The most frequent use is for modern weapons type M16/M4 is simply clamped to the classic 22 mm RIS rails. Shooter then simply turning the gun alternate ways of aiming.
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