DSA AR15 M16 Type Complete Bolt Carrier Group - Nitride Finish - 5.56-.223-300 BLK

DSA AR15 M16 Type Complete Bolt Carrier Group - Nitride Finish - 5.56-.223-300 BLK

The DS Arms AR15 M16 Cut complete Mil-Spec bolt carrier group is perfect for your next build. We machine these assemblies using the latest manufacturing techniques, material and finishes. The carrier is shot peened 8620 Steel and the bolt is MPI 9310 material. The bolt, carrier & cam pin feature a durable Nitirde Finish for greater resistance to wear, corrosion & rust. This complete AR15 M16 cut bolt carrier group assembly includes the complete bolt, complete carrier with properly staked gas key, cam pin, firing pin and firing pin retaining pin.

Bolt Specs:

• 9310 Super Alloy Steel (7% stronger than Carpenter No. 158® Steel).
• MPI Bolt (Magnetic Particle Inspected).
• Hardened Steel Extractor.
• Heavy Duty Extractor Spring.
• Black Extractor Insert.
• Mil-Spec O-Ring.
• Milspec Gas rings (3).
• Nitride Finish.

Bolt Carrier

• Proper 8620 steel
• Shot Peened
• Properly Staked Gas Key, Nitride Finish
• Grade 8 Gas Key Screws
• Heavy Duty M16 design
• Nitride Finish

Cam Pin

• Hardened Steel
• Nitride Finish

Firing Pin

• Hardened Steel
• Chrome Plated

Firing Pin Retaining Pin

• Hardened Steel
• Black Oxide Exterior