Videos tagged with Machining Defect

This guide addresses a common issue with some PSA Sabre AR-15 upper receivers identified by the speaker, Cody. The problem stems from improper milling of the internal receiver walls, leading to excess material that obstructs the magazine well. This can cause significant difficulty in seating and removing magazines, even if the rifle functions once loaded. The guide outlines visual inspection and functional testing steps to diagnose this defect.

This video highlights a machining defect encountered with a Yankee Hill Machine (YHM) handguard intended for an AR pistol build. The uploader expresses a minor issue with the component, indicating a potential quality control or manufacturing problem with the specific part ordered. The video serves as a brief report of this defect within the context of a custom firearm build.