Thread: Piston Upper AR
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Old November 12, 2012, 08:49 AM   #17
Crow Hunter
Senior Member
Join Date: January 27, 2012
Posts: 1,078
One of the advantages of the AR system is that the lower is the "gun".

If you get a piston upper, and you later can't get parts or decide you don't like it, you can always switch to a DGI by just swapping uppers.

That being said, the pistons will always be more expensive than the DGI for a small reduction in cleaning time. I guess it depends on how valueable your personal time is.

Now if you are planning on coming up out of the water like a SEAL and shooting immediately or going with really short barrels and firing full auto, then a piston has some advantages over DGI in those situations.
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Good luck.
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