OT Firearms Premium Full Mass BCG | NiB | 5.56 NATO

M16 bolt carrier group is the perfect BCG for your next build and is compatible with any AR15 build. Properly built, no corners cut. Individually Inspected.  The polished nickel boron coating is applied by the industry leading plater, WMD. The NiB-X coating provides a very slick surface that makes for easier cleaning and increases reliability. Properly built, no corners cut.

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