CMMG Banshee 100 MK57 Upper 5.7 X 28 8" Barrel

The CMMG Banshee 100 MK57 upper uses high quality construction to complete a new build. It comes chambered 5.7x28mm with an 8 inch barrel. Features include an M-LOK handguard, a forward assist, a dust cover, and an optics ready Picatinny rail. Finish your build today for the best price online from GrabAGun!
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