Ballistic Advantage AR-15 5.56/.223 Bolt Carrier Group - Black Nitride

BALLISTIC ADVANTAGE 5.56 COMPLETE BOLT CARRIER GROUP - NITRIDE Features: M16 Carrier Machined from 8620 5.56 Bolt Machined from 9310 Forged Gas Key Properly Staked Tool Steel Extractor Mil-Spec Extractor Spring with black insert and Viton O-Ring Grade 8 hardware Shot Peened Bolt HPT/MPI Carrier, Gas Key, Cam Pin, Bolt, & Extractor coated inside and out with Black Nitride QPQ Test Fired complete before shipping to ensure proper function