the firing system, which works under greater pressures..
With less barrel length, and thereby less time for gas pressure buildupm why not lower pressures????
Me thinks article author does not know XXXX from Shinola.
Had XM-177 (with bolt fwd assist) in RVN. Loved it.
posted on 11/22/2003 2:04:58 PM PST
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With a shorter barrel you have to place the gas port closer to the chamber where pressures are higher. I'd never heard of this being a problem before though.
The biggest problem I was aware of with the M4 is that with the shorter barrel the 5.56 round is less effective.
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