This is a LBE Unlimited Bolt Carrier Group known as the 308, model AR10BCG.
LBE .308 Bolt Carrier Group (DPMS Style). Billet carrier machined from 8620 Steel and Case Hardened.
Features:
Mil-Spec Phosphate Coating
Properly Staked Gas Key
Bolt- 158 Carpenter Steel
Chrome Lined Gas Key and Firing Pin Channel
