The LUTH-AR complete BCG includes the Bolt Carrier, Carrier Key, Cam Pin and Firing Pin Retaining Pin. (Entire Bolt Carrier Assembly/Extractor Assembly for AR-15)
Luth-AR, Bolt Carrier Group, Black Finish, 223/556
Built from 8620 Steel, heat treated to Army specifications, Manganese Phosphate or Black Nitrate finish.
Includes:
- Bolt Carrier
- Carrier Key
- Firing Pin
- Cam Pin
- Firing Pin Retaining Pin
- Bolt carrier key screws (2)
Bolt Carrier Specs:
- Carrier: 8620 steel
- Cam pin: 4340 Alloy steel
- Carrier key: 4130 Alloy steel
- Army Spec Heat Treatment
- Manganese Phosphate or Black Nitrate finish (based on available inventory)
- Auto or Semi-Auto cut (based on available inventory)
Bolt:
- Due to supply chain issues, material for the bolt may vary.
- Mil-Spec heat treat
- Manganese Phosphate
Extractor:
- 4140 Chrome Moly
- Machined from bar-stock
- Mil-Spec heat treat
- Manganese Phosphate










