A
arizonaguide
Guest
I was researching a bit more on Piston Driven uppers, and ran across this excellent animated diagram. Here is a still shot of the diagram, and just hit the link below for the animated diagram:
CLICK LINK FOR ANIMATED DIAGRAM HERE:
http://www.armytimes.com/projects/flash/2007_02_20_carbine/
![pistonHK416.jpg](/proxy.php?image=http%3A%2F%2Fi367.photobucket.com%2Falbums%2Foo114%2Farizonaguide%2FpistonHK416.jpg&hash=9e939c35dbca25bd157984243de9c461)
CLICK LINK FOR ANIMATED DIAGRAM HERE:
http://www.armytimes.com/projects/flash/2007_02_20_carbine/