Luth-AR .308 NiB Complete Bolt Carrier Group Assembly/Extractor – .308 – Nickel Boron 308-BCA-NB

NiB Complete Bolt Carrier Group – .308 – Nickel Boron without forward assist serrations

Looking for a high-quality bolt carrier for your AR-style rifle? Look no further than our Nickel Boron coated, fully assembled AR .308/7.62mm bolt carrier ready to install and use. Made from top-grade materials and designed for reliable performance, this NiB bolt carrier is a great choice for your rifle. NiB is prized for its hardness, lubricity, and corrosion resistance.

Built from 8620 Steel, heat treated to Army specifications, NiB (Nickel Boron) coating.

Includes:

• NiB Bolt Carrier without Forward Assist Serrations
• NiB Carrier Key
• Firing Pin
• NiB Cam Pin
• NiB Retro 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
• NiB Finish
• Full auto cut only at this time

Bolt:

• C158 Material
• Mil-Spec heat treat
• NiB Finish

Extractor:

• 4140 Chrome Moly
• Machined from bar-stock
• Mil-Spec heat treat
• NiB Finish

SKU: 308-BCA-NB