AR-15/M16 Bolt Carrier Group – Nitride & Phosphate Finish

Upgrade your AR-15 with a battle-ready M16 Bolt Carrier Group (BCG) engineered for performance, durability, and smooth operation. Whether you're building a new rifle or replacing a worn-out BCG, this drop-in-ready unit is crafted to meet or exceed MIL-SPEC standards.

Built to Perform:

• Bolt: Machined from 9310 steel and finished in a rugged manganese phosphate coating (Parkerized) for lasting reliability under high round counts.
• Carrier: Full-mass M16-style carrier made from 8620 steel with a slick salt bath nitride finish — easier to clean, lower friction, and requires less lubrication.
• Gas Key: Properly staked for long-term gas system integrity.
• Forward Assist Serrations: Compatible with standard AR-15 uppers.
• MP Inspected: Each BCG is magnetic particle inspected (MPI) to ensure it's free from material defects — shoot with confidence.

What’s Included:

• Complete bolt assembly (9310 steel)
• Nitride-treated carrier (M16 full-auto profile)
• Extractor & extractor pin
• Firing pin & cam pin
• Gas key (pre-installed and staked)

Specifications:

• Caliber: 5.56 NATO / .223 Rem
• Platform: AR-15 / M16
• Bolt Finish: Manganese Phosphate
• Carrier Finish: Salt Bath Nitride
• Magnetic Particle Inspected: Yes
• Made in the USA

Ready to drop in. Built to last. This is the reliable, precision-machined BCG your rifle deserves.