Videos tagged with Flex Hone

This video details a physical inspection of three Brownells M16A1 barrels, with one exhibiting a chamber issue and failing front sight base alignment. The uppers are identified as 1970s Colt. Despite the defect, the decision is made to repair the barrel due to its scarcity. The repairs involved using a Flex Hone for the chamber and re-aligning the front sight base with reamed holes and oversized taper pins. A follow-up video is promised to showcase the repair process.

This guide details how to diagnose and resolve AR-15 short-stroking issues, a problem where the bolt doesn't cycle fully. Expert Mark Serbu demonstrates that a rough chamber is a common cause, leading to dull brass and extraction failures. The solution involves polishing the chamber with a Flex-Hone tool, restoring reliable cycling and shiny ejected brass.