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NPM Numbering System Question
I am restoring a 4.6 mil NPM and was wondering about the numbering on the bolt, slide and trigger housing. Should the numbers all be the same? a N-12 bolt, N12 trigger housing and a N12 slide? or were they mixed? I have a N9 trigger housing, a N12 bolt and a N14 slide?
Thanks
Bill
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08-18-2009 12:20 AM
# ADS
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4.6 would be QHMC. If you have a 4.06 I would think all sounds about right.
For sure I will be corrected..
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A 4.6 range could be Rock-Ola or QHMC. 4.06 would have been assigned to Underwood.
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sorry all it is a 4.23 mil
Bill
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