Quarter Circle 10 Side Charging Uppers
By Ray I.
Quarter Circle 10 debuted their aluminum AR lowers that accept Glock mags last year, they now have a non-reciprocating side charging upper on the way. It works with any of Quarter Circle 10’s blow back bolt assemblies (sold separately) and also works with their 9mm, .40S&W, .357 Sig and .45ACP barrels (also sold separately). The Quarter […]
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Source:: The Firearm Blog
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