Shorter where? In the back or the front? Is it shorter in the front (which makes the gas sit key back further)?
If you put the two carriers next to each other and lined up in the front, do the gas keys look to extend to the front the same distance, or is this where you notice the difference?
This is my theory. The gas tube is seated deeper in one gas key than the other, when they are fully forward into battery. The one that is back further - is losing pressure - not driving the bolt carrier back.
Last edited by gm272gs; 02-26-2013 at 12:44 AM.
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