Odin Bolt Carrier Group Ar-15 - .223 Black Nitride

FEATURES
-Fits AR-15/M4 compatible style rifles
-Mil-spec dimensions
-Bolt Carrier Group Material: Case hardened 8620
-Steel Finish: Black nitride
-Gas Key: 4130 steel attached with Grade 8 hardware & 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 & hard chrome coated
-Bolt Assembly: The bolt is "true" Mil-Spec dimension & external surfaces are CNC ground
-Bolt Material: Case hardened 9310 steel
-Finish: All bolt components black nitride
-Extractor: 4340 steel Mil-Spec
-Extractor spring &O-ring combination
-Magnetic Particle Inspected
-High Pressure Test
-Made in USA