Direct Impingement

A complete meltdown of the CMMG Mutant – a blend of the AR-15 and AK-47. How long do you think it will last?

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A standard AR-15 uses a direct impingement system. While there are many benefits to such a system, does have drawbacks. A gas piston system is a different method to cycle a firearm that has its own set of advantages and disadvantages. So let’s “ooh” and “ahh” at ultra slow motion footage of Primary Weapon Systems’ long stroke piston system.

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