BOLT CARRIER ASSY 5.56 NICKEL LOW MASS | POLISHED NICKELWilson Combat Bolt Carrier Assembly 223 Rem | 5.56 NATO - Polished NickelSKU: WCTR-BCA-LMPNIB$226.95PriceQuantity*Add to CartSpecifications Manufacturer model: TR-BCA-LM-PNIB UPC: 810025500726 Type: Accessory-Bolts Caliber / gauge: 223 Rem | 5.56 NATO Overall length: 11 Finish: Polished Nickel Feature 1: Low Mass