Survival World on MSN
The simple mechanics behind the AR-15 gas system
At its core, the AR-15 uses a direct impingement gas system to cycle rounds. This system redirects a portion of the gas ...
Survival World on MSN
Short or long? The AR-15 barrel length decision most people get wrong
One of the biggest misconceptions about barrel length is the belief that shorter barrels are always easier to handle. While ...
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