This video from School of the American Rifle announces the re-availability of SOTAR BCG bore gauges, offered in two versions: one with a US-made handle and another with an imported handle. The organizer tray, made by Suppressor Tools.com, is also highlighted as a way to keep these gauges organized. The instructor emphasizes that these gauges are for checking dimensional efficiency within the bolt carrier, not for determining good or bad status.
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