AIM7 M16 Bolt Carrier Group—Chrome-Lined, Billet Extractor, 5.56, Manganese Phosphate

Description

This carrier is machined by Outerwild from Mil-Spec 8620 steel with a Manganese Phosphate finish that provides long-lasting resistance to corrosion. The interior is hard chrome lined creating a mirror-like, exceptional finish that is trusted by seasoned shooters and depended on by experienced builders. the secret sauce for our favored BCGs, they are PRECISION GROUND. We machine and grind our BCGs to perform tens of thousands of rounds. We grind the outside dimensions and ALL three interior dimensions of our carrier, giving our BCGs a nearly frictionless surface finish.

• M16 Style Carrier
  • Machined from 8620 Steel
  • Chrome-Lined
  • Heat Treated
  • Final Grind Before Plating
  • Manganese Phosphate Finish
• 5.56/.223 Bolt
  • Machined from 9310 Steel
  • Heat Treated
  • Shot Peened
  • MPI
  • Phosphate Finish
• Billet Gas Key
  • Machined from a Solid Billet of 4140 Steel
  • Chrome-Lined
  • Properly Seated with Grade 8 Fasteners
  • Properly Staked
  • Manganese Phosphate Finish
• Cam Pin
  • Machined from 4140 Steel
  • Heat Treated
  • Manganese Phosphate Finish
• Billet Extractor
  • Machined from a Solid Billet of 4140 Steel
  • Heat Treated
  • Shot Peened
  • Phosphate Coated
  • Extractor Insert Included
  • Viton O-Ring Included
• Firing Pin
  • Machined from 8640 Steel
  • Hard Chrome Plated
• 100% American Made