How the Select Fire M4 Operates in Full Auto (AR-15 Variant)

Firearms are incredibly simple mechanical devices, full-auto firearms are no different.

Machineguns are shrouded in mystery and falsehoods. Hopefully this fantastic video from 45Snipers helps provide some insight into these fantastic mechanical devices.

At their core, full auto firearms are not that different than their semi-auto variants. There’s simply an extra mechanism to keep the firearm cycling, and the mechanism is actually pretty simple.

After all, firearms are simple machines powered through gunpowder and springs.

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Categories: Firearms | Tags: , ,

Brian Purkiss
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Brian Purkiss is a firearms instructor, competitive shooter, proponent for individual liberty and Second Amendment rights, and a web developer. He enjoys competing in and organizing Run and Gun Competitions, as well as shooting in USPSA, Outlaw matches, and 3 Gun.