LBE, Lead By Example make high quality US parts.

This particular LBE Unlimited part is a must have for the modern gun builder or shooting enthusiast. Great as a spare, or perfect for your next build this complete AR-15 bolt carrier group features a carpenter 158 bolt, 8620 steel carrier, and a phosphated matte black finish.

Features and Specifications:
Manufacturer Number: AR15BLT
Mil-Spec AR-15 Complete Bolt Carrier Group
Carpenter 158 Bolt
Phosphated 8620 Steel Carrier assembly
Heat Treated and Plated
Chrome Lined Carrier Interior
Carrier Key is chrome lined and attached with grade 8 screws and staked
Made in the USA
Matte Black

Fits:
Standard AR-15 upper receivers