[SHOT 2016] Quarter Circle 10’s Glock Mag AR Pistol

Quarter Circle 10 had a very strong line up this year at their booth consisting of several flavors of AR pistols chambered in pistol calibers. Danny walked me through the lineup of their pistols that accept Glock magazines and feature a last round hold open. Currently available in 9mm, .40 S&W, and .45 ACP you […]

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