Tag Archives: assault rifle AK-74

BSR-74, cal. 5,45x39mm

BSR (Bulgarian sport rifle), is a semiautomatic sport rifle, manufactured by “ISD Bulgaria” Ltd. The rifle is gas-operated where a portion of high-pressure gas from the cartridge is used to impinge on the piston head to perform reloading. It has a stamped, lightweight type of receiver. The trigger mechanism, as
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