** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. ** The gas cylinder on the M14 rifle, ...
Addax Tactical's AR Gas Piston Upper, the ATAC-GPU (Advanced Tactical AR Carbine Gas Piston Upper), utilizes a specially designed, self regulating, long stroke piston system, for enhanced dwell time ...
Gearheads might be aware of piston skirts, but their exact function isn't always clear to those outside engineering. Here's ...
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