Videos tagged with Extractor Pin

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.

This video addresses common issues found in two KAK bolt carrier groups (BCGs), specifically focusing on damaged extractor pivot pins. The instructor demonstrates how rolled-over pins prevent proper extractor function and require replacement. Additionally, rough surface finishes in the carrier key tunnel bore are highlighted as potential causes of premature wear and cycling issues.

This review of the FoxTrot Mike 102 highlights its departure from standard AR-15 platforms, emphasizing proprietary components across the upper, lower, barrel, and bolt carrier group. The video details issues with disassembly, factory assembly errors, and the frequent replacement of specific internal parts like firing pin springs and extractor pins, making it less suitable for serious applications where parts availability and reliability are paramount.