Odin Works Bolt Carrier Group Black Fits AR15 223 Rem / 5.56 Nato Nitride BCG

Overview

AR15 223/5.56 Black Nitride BCG Bolt Carrier Group fits AR15/M4 compatible style Rifles (i.e.) .223/5.56mm .300 Blackout. Specifications: - True Mil-Spec Bolt Carrier Group - Material: Case Hardened 8620 Steel - Finish: Black Nitride. This advanced low friction coating minimizes the need for lubricants. - Gas Key: 4130 Steel attached with Grade 8 hardware and properly staked into a milled valley to ensure proper positioning. - Cam Pin: Hardened 4340 cam pin - Firing Pin: Mil Spec firing pin made of 8740 steel center-less ground and Hard Chrome coated - Bolt Assembly: The Bolt is true Mil Spec dimension and external surfaces are CNC ground after heat treat for a precision fit. - Bolt Material: Case Hardened 9310 Steel. - Finish: All Bolt components Black Nitride - Extractor: 4340 Steel Manganese Phosphate coated - Mil Spec Extractor Spring & O-Ring Combination - MPI: Magnetic Particle Inspected - HPT: High Pressure Test - Carrier fits AR15/M4 compatible style Rifles (i.e.) .223/5.56mm .300 Blackout