00:00At first glance, the M4 Carbine and the HK416 look almost identical, but under the hood, they're completely different beasts.
00:10The M4, America's standard service rifle, runs on a direct gas impingement system.
00:17That means when you fire, gas from the barrel is vented back through a tube directly into the bolt carrier group, forcing it rearward and cycling the action.
00:26It's lightweight and accurate, but that gas also brings carbon and heat right into the chamber, which can cause fouling if not cleaned regularly.
00:36The HK416, on the other hand, was designed by Heckler and Koch to fix that very problem.
00:44Instead of direct impingement, it uses a short-stroke gas piston, borrowed from the German G36.
00:51The piston drives a rod that cycles the bolt, keeping hot gases and carbon away from the chamber.
01:00The result?
01:01A rifle that's cleaner, cooler, and famously reliable.
01:05So which would you choose, tradition or innovation?
01:09So that's what you've seen.
01:10The action teh fotos?
01:11Most of thewn fusion?
01:13Some crusade?
01:14No, no, no.
01:15No.
01:15What are the directions?
01:16The aspiration will bring one last
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01:23Paul anything?
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01:33Asia sending it back into case-taking range more than two-l Oregon things, often
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