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The difference between Gas Piston and Direct Impingement technology for an AR-15

Posted by Stag Arms on Fri, Sep 06, 2013


The AR-15 Rifle, while eminently customizable, carries with it a few conundrums. One is the choice of operating system; do you get a model which uses gas piston technology, or the more traditional direct impingement?

Fans of the gas piston will state that impingement models are prone to jamming and often foul easily. Fans of the impingement model will call gas piston tech mechanically unsound. Who is correct, and what is the real difference between the model types here?

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Topics: AR-15, Gas Piston AR-15

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