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Does anyone know if the gas hole/port diameters differ between standard length and paratrooper M249 barrels with self-regulating gas systems? I have a standard length barrel I was hoping to shorten to just over 16" and thread for a suppressor, but the Smith I'm working with brought up there may be functioning issues without an adjustable gas valve.

Thanks for the input!


Evaluating volume of fire vs. shot placement effectiveness.
 
Posts: 659 | Registered: February 10, 2009Reply With QuoteReport This Post
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Why not just buy a second barrel?
 
Posts: 3369 | Registered: December 06, 2006Reply With QuoteReport This Post
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It is actually the third barrel.


Evaluating volume of fire vs. shot placement effectiveness.
 
Posts: 659 | Registered: February 10, 2009Reply With QuoteReport This Post
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Find an early 249 barrel with the two position gas regulator. It’s by far the easiest way to deal with this.

I did the same, works great.
 
Posts: 82 | Location: USA | Registered: May 03, 2003Reply With QuoteReport This Post
Fight, Build, Destroy.
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Well that sucks, I had just such a barrel from a box of random parts I bid on, and a buddy wanted it to make a lamp...


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Posts: 4597 | Location: Winchester, KY | Registered: December 31, 2009Reply With QuoteReport This Post
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quote:
Originally posted by HKG36k:
Find an early 249 barrel with the two position gas regulator. It’s by far the easiest way to deal with this.

I did the same, works great.


What length did you shorten it to?


Evaluating volume of fire vs. shot placement effectiveness.
 
Posts: 659 | Registered: February 10, 2009Reply With QuoteReport This Post
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