Durable & Reliable BCG Upgrade For AR-308 Rifles
This Luth-AR LR-308 Bolt Carrier Group is a high-quality and reliable option for AR-308 builds perfect for upgrading or replacing worn or broken BCG parts. It is designed strictly to military specifications to ensure proper fitment and function on DPMS styled 308 rifles and provides a smooth and reliable setup with maximum durability.
The BCG comes assembled with the .308 Bolt/ extractor already installed and will work perfectly with mil-spec LR308/SR25 upper receivers.
Manganese Phosphate Finish
The Carrier on this BCG is made of 8620 steel while the extractor is made from 4140 Chrome Moly for maximum durability. Coated in Manganese Phosphate finish, this BCG ensures a smooth operation of the upper receiver while also making it easy to clean and maintain.
This Luth-AR LR-308 Assembled BCG includes firing pin, retaining pin, cam pin, bolt w/ extractor installed, and bolt carrier key screws(2).
Included:
- Bolt Carrier
- .308 Bolt w/extractor installed
- 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
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




















