The Andro Corp Industries ACI AR15BCGN AR15/M16 BCG Nitrided bolt carrier group is built to mil-spec dimensions for shooters who want dependable cycling and long service life in their AR-15 or M16 pattern rifle. The carrier is machined from durable 8620 alloy steel with a full auto profile and treated with a smooth black nitride finish for enhanced wear and corrosion resistance. The bolt is precision machined from 9310 alloy, case hardened, shot peened, and magnetic particle inspected to help ensure consistent performance.

This complete bolt carrier group is ready to drop into any compatible AR-15 or M16 upper, making it a strong choice for new builds or refreshing a well-used rifle. A properly staked gas key supports reliable gas sealing over extended round counts, while the nitrided surfaces simplify cleaning after long range sessions or training days. Whether you are setting up a general-purpose carbine or a dedicated range rifle, this BCG reflects Andro Corp Industries’ focus on practical design and dependable manufacturing.

Key Features:

• Manufacturer: Andro Corp Industries
• Model: ACI AR15BCGN AR15/M16 BCG Nitrided
• Finish: Black Nitride
• Firearm Fit: AR15/M16
• Material: 8620 Alloy Steel Carrier, 9310 Alloy Bolt
• Magnetic Particle Inspected: Yes
• Gas Key: Properly Staked
• Profile: Full Auto