This video addresses issues with KAK NP3 dual ejector bolts, specifically focusing on damaged and bent ejector pins. The instructor demonstrates how bent ejector pins can cause sluggish ejector function and emphasizes the importance of proper installation of roll pins or spiral pins to prevent binding. The content highlights a common problem encountered in AR-15 bolt carrier groups.
This video provides a brief autopsy of four KAK NP3 dual ejector bolts. The primary issue identified is seized extractors, requiring significant force to remove the pins. The edges of the extractors are noted as being badly damaged, indicating misalignment and forceful installation methods.
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