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Mil-Spec vs. Commercial Buffer Tubes Explained (with Measurements)

“Isn’t mil-spec better than commercial? I want what the military uses!” That’s a question and a statement often made by so many black rifle builders and shooters. This quick lil’ guide explains the similarities and differences between mil-spec and commercial AR-15 buffer tubes. What’s a Buffer Tube, Anyway? If you’re a first-time builder shopping around […]

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AR-15 Gas Systems: The Complete Guide

A regular AR-15 fires, ejects, and chambers rounds using either a direct-impingement or piston-operated gas recoil system. That’s a mouthful, let’s just call it a gas system either way. Just like the AR-15 comes in a plethora of calibers and configuration, so too does its gas system. There is no real, “universal” logic for picking […]

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