The Long and Short of It – Short Stroke Piston vs. Long Stroke Piston

Long and short are two terms often used in various descriptors of firearms technology. Two of the most critical items that use long and short are gas pistons and actions. I recently stumbled someone asking what’s the difference between a short-stroke gas piston and a long-stroke gas piston, as well as long and short actions in rifles. Since long and short are both in the name, I figured we could jump in headfirst and answer the questions: read on to learn more about the long stroke piston and short stroke piston (and maybe a little about direct impingement).

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