Sun-Devil-Adjustable-Carrier-Key

Sun-Devil-Adjustable-Carrier-Key

Here’s something new, and I like it: The ADIGS adjustable bolt-carrier key by David Beatty at Sun Devil. It regulates gas flow. What’s cool about this is it’s easier to retrofit than anything barrel-mounted, and, muahahahaha, it’s unnoticeably legal for NRA Service Rifle competition.

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