Breakthrough Nylon Bolt Carrier Key Brush, None, .308 (7.62mm)

Breakthrough Clean Technologies Nylon Bolt Carrier Key Brush, AR-10 308 Caliber & 7.62mm, Brass/Black

Product Features.308 cal. & 7.62mm bolt carrier brushFits AR-10 .308 bolt carriers for precision cleaningStiff nylon bristles easily attack heavy foulingRugged brass core#8/32 thread for attachment to Breakthrough Clean stainless steel rods

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