Guntec USA AR .308 Ultimate Spare/Repair Parts Kit EXCEPT Mag Catch/Bolt Catch/Tigger/Hammer/Disconnector/Safety Black. 308 Cal Repair / Replacement AR .308 Parts Kit Kit comes with upgraded parts like : Extended Mag Catch and Extended Takedown Pins Contains everything in a lower parts kit except: mag catch bolt catch trigger hammer disconnector and safety Everything else is included Specifications for Guntec USA AR .308 Ultimate Spare/Repair Parts Kit: Manufacturer: Guntec USA Color: Black Caliber: .308 Winchester Gun Make: AR Platform Gun Model: AR-10 Features of Guntec USA AR .308 Ultimate Spare/Repair Parts Kit: .308 Cal Repair / Replacement AR .308 Parts Kit Kit comes with upgraded parts like : Extended Mag Catch and Extended Takedown Pins Contains everything in a lower parts kit except: mag catch bolt catch trigger hammer disconnector and safety Everything else is included Package Contents: Guntec USA AR .308 Ultimate Spare/Repair Parts Kit Guntec USA AR-KIT-308: Ultimate Spare/Repair Parts Kit AR .308 EXCEPT Mag Catch/Bolt Catch/Tigger/Hammer/Disconnector/Safety Black