Black Nitride AR/M16 .223/5.56 Bolt Carrier Groups. No extra bells and whistles just a high quality BCG at great price.
• 8620 Tool Steel Enhanced Radius design (Angle Cut) Carrier
with inside and out Black Nitride Treatment
• 9310 Steel MPI Bolt with inside and out Black Nitride
• Billet Machined Extractor with Black Insert and O-Ring
• Billet Machined 4140 Steel Gas Key
• Grade 8 Fasteners
• Military Specification Gas Key Staking