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AR-15 300 AAC blackout 16" stainless straight fluted tactical upper assembly
Product Code: 300BLKUA-STRAIGHT
Out Of Stock
AR-15 300 AAC blackout 16" stainless steel straight fluted tactical upper assembly. 300 blackout caliber uppers use your standard .223/5.56 bolt carrier group and magazines. No special bolts or magazines to buy to get into a new caliber! Just drop an upper on your standard mil-spec AR-15 lower, and you are ready with your new caliber.