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Old November 9, 2012, 02:27 PM   #1
Senior Member
Join Date: August 10, 2012
Location: Utah
Posts: 232
Gas tube cleaning on an AR...?

HI folks,

Following up on my recent purchase of a S&W M&P 15 Sport, what is the maintenance interval and type(s) of cleaning methods to clean the gas impingement tube?

How do I tell when it needs cleaning - besides when the bolt won't cycle?

Does cleaning require removal of the front A2 sight? If so, does this mess up the zero? Maybe a lame question, but I haven't had that part off the gun yet.

I learned when I was 6 that I can only disassemble an alarm clock so many times (once) before it won't work any more. Trying not to do that to my firearms....
"Figure Out What You Believe and STAND YOUR GROUND!"
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Lots of Cast Iron to Cook With...
and a few defensive firearms, too!
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