Pinning a Mizzle Break
The post by Cobra prompted this post. I also am interested in an 11 1/2" AR upper. I don't want to weld a muzzle break and know they can be pinned. I pin concentric tubes in my designs at work when the wall thickness doesn't allow things like set screws & etc.
What I do is drill a hole perpendicular to the axis of the tubes right on their axial seam. I usually use a roll pin because a dowel pin requires a much more accurate (and expensive) hole tolerance.
My problem is this pin isn't permenate. Perhaps I don't understand how a break is permenately pinned.
Please clue me in guys,
What I do is drill a hole perpendicular to the axis of the tubes right on their axial seam. I usually use a roll pin because a dowel pin requires a much more accurate (and expensive) hole tolerance.
My problem is this pin isn't permenate. Perhaps I don't understand how a break is permenately pinned.
Please clue me in guys,
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Pinning is not considered permanent. The lengthening device must be hard-soldered or welded to comply with the law. 0 -
For shizzle! Blind pin so the hole doesn't go all the way thrizzle and then weld over the hizzle. 0 -
Silver solder(1100+ deg F) is the easiest way to do it. I have blind pinned as well.
Silver solder can usually be reversed without ruining anything.0 -
I suggest that you do what the manufacturers do: Write ATF headquarters & get your specific conversion plan approved in writing before you do anything.
Neal0
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