Odin Works Black Nitride Bolt Carrier Group

Technical Specs
Mil-Spec dimensions 
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 Mil Spec 
Extractor Spring & O-Ring Combination 
MPI: Magnetic Particle Inspected 
HPT: High Pressure Test 
Made in USA 
Carrier fits AR15/M4 compatible style Rifles (i.e.) .223/5.56mm, .300 Blackout