The MP5 is an iconic weapon. In constant use since the 1960s, its silhouette is recognized as much as the operator’s motion to charge it. Quarter Circle 10, known for their pistol caliber ARs, has created the QC5 which is clearly inspired by the classic MP5.
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Side Cocking AR That Feeds From MP5 Magazines: Quarter Circle 10/ Strike Industries 9mm AR Build
Updated: May 11, 2019The new gun at SHOT 2019 was the MP-5. Importers and American companies are supplying clones and new AR pistol caliber carbines now run MP-5 magazines. Quarter Circle 10 (QC10) and Strike Industries (SI) are at the front of that movement and plug the excellent MP-5 magazine into the All-American AR to make a world-class 9mm carbine.