Sons of Liberty Gun Works AR-15 5.56x45mm NATO OCKS Bolt Carrier Group Phosphate Finish Black. 56x45mm NATO OCKS Bolt Carrier Group was created in order to function as the ideally suited product for any person needing a top quality choice.. These Bolt Carrier Groups from the skilled product professionals at Sons of Liberty Gun Works are made by using heavy duty and dependable components in order to provide you with product that will be powerful for countless years. Designed using some of the best available substances and construction these Bolt Carrier Groups through the product experts at Sons of Liberty Gun Works can last you an exceptionally long time. Sons of Liberty Gun Works has been developing top quality products for a number of years and the Sons of Liberty Gun Works AR-15 5.56x45mm NATO OCKS Bolt Carrier Group is their particular means of demonstrating just how much they care. Here at OpticsPlanet we ensure that it is our responsibility to receive the perfect product for your preferences and showcasing the Sons of Liberty Gun Works AR-15 5.56x45mm NATO OCKS Bolt Carrier Group is a thing that we're pleased to offer. Specifications for Sons of Liberty Gun Works AR-15 5.56x45mm NATO OCKS Bolt Carrier Group: Manufacturer: Sons of Liberty Gun Works Color: Black Finish: Phosphate Caliber: 5.56x45mm NATO .223 Remington Gun Make: AR Platform Gun Model: AR-15 Sons of Liberty Gun Works SOLGW-BCG556-OCKS: AR-15 5.56x45mm NATO OCKS Bolt Carrier Group Phosphate Finish Black