Thread: Piston Upper AR
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Old November 10, 2012, 09:29 PM   #5
Senior Member
Join Date: May 24, 2011
Posts: 986
Originally Posted by ChaseReynolds
I hear piston driven is the way to go
Yeah the old way sucks, thats why we lost Vietnam.

Either system works very well. There is another thread here about cleaning or not cleaning the gas tube. I'm in the "never camp", 1,000s of the best crap coming out of the eastern block and no issues.

Now your BCG stays cool to the touch with a piston system, yeah cool but that wouldn't sway me either way.

Good luck
M&P- the other dark meat
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