Thread: Smith and Wesson M&P sport bolt specs
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Old 10-23-2015, 11:06 PM
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Quote:
Originally Posted by JayC_783 View Post
The bolt in my Sport has the MP on it.
The 'MP' just means it 'Might Phail' as opposed to Magnetic Particle Inspected, in which case it would be marked 'MPI'
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M&P 22A, 40c, 15A, 15-22
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