2 Pack - AIM Phosphate Bolt Carrier Group 5.56 / .223 Chrome Lined MPI

$ 180.00 $ 189.99

2 Pack - 2 AIM Bolt Carrier Groups. Made in the U.S.A! MPI tested Mil-Spec BCGs, complete and ready to drop in. Ships out Priority Mail with tracking!
Features:
  • Shot Peened MPI (Magnetic Particle Inspected) Bolt. 
  • 9310 Bolt Material, 8620 Chrome Lined Carrier and Gas Key. 
  • Full Profile Carrier
  • Properly staked Investment cast gas key hardened to USGI specifications 
  • Gas Key Fastened with Hardened Grade 8 Fasteners. 
  • Extractor O-Ring upgrade with Black Insert. 
  • Fast, free shipping!

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