Bolt carrier assembly with gas piston, for 7.62x39, for short system, semi-auto, Arsenal Bulgaria
Spring for Krinkov gas tube / upper handguard
Retainer pin Bulgarian
Retainer spring, for pivot pins, for milled and stamped receivers, wire spring
U.S. made stainless steel heat shield for krinkov
Hinge block, for Milled7.62 x 39 mm and 5.56 x 45 mm calibers, for Krinkov, Arsenal Bulgaria