Barrel channel opening tool..lol
Pretty sure midway and/or brownells has them. Look under gunsmithing. Sandpaper and the correct size pc of pvc or wood dowel has always worked for me though.
Barrel channel opening tool..lol
Pretty sure midway and/or brownells has them. Look under gunsmithing. Sandpaper and the correct size pc of pvc or wood dowel has always worked for me though.
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