Best AK chassis system | SAG MK3
This expert-level review by Polenar Tactical details the SAG MK3 chassis for AK platforms. The instructor, a Finnish Brutality champion, highlights its robust monolithic upper, free-floating handguard with zero retention, and secure attachment mechanism that locks into the receiver and trunnion. The design allows for co-planar optics mounting and demonstrates excellent heat management, remaining only warm during extensive firing, even with a suppressor.









