Guntec USA AR-15 / M16 Complete Nitride Bolt Carrier Group


Upgrade your AR-15 with the Guntec USA Complete Nitride Bolt Carrier Group. Crafted from high-quality materials and nitride-coated for durability, this BCG ensures optimal function and performance. With mil-spec components, including a properly staked gas key and magnetic particle inspected bolt, it delivers reliability and longevity. Made in the USA, it’s the perfect choice for discerning shooters seeking top-notch AR-15 upgrades.


Guntec USA M16 Bolt Carrier Group for .223/5.56 and 300BLK Nitride Coated

Looking for a top-notch, complete bolt carrier group for your AR-15? Look no further than Guntec USA! Additionally, their Guntec AR-15/M16 Bolt Carrier Group’s are nitride coated inside and out for enhanced durability and longevity and are assembled by experienced professionals.

The bolt carrier is made from 8620 steel, while the bolts crafted from high-quality 9310 steel. Also, the gas keys been properly staked, and the extractor spring features an upgraded O-ring for increased tension. All surfaces are also nitride coated. And of course, the bolt has undergone magnetic particle inspection to ensure proper strength and machining.

In other words, this BCG is designed to provide optimal function and performance. So, if you want the best of the best for your AR-15, choose Guntec USA!

Guntec AR-15/M16 Bolt Carrier Group Features:

  • Mil-Spec Carrier
  • 8620 Tool Steel
  • Full Auto M-16
  • Mil-Spec Bolt
  • 9310 Steel
  • Magnetic Particle Inspected (MPI)
  • Also, Mil-Spec Extractor
  • 8620 Tool Steel
  • Also, Nitride Finish
  • Extractor Spring
  • Mil-Spec Gas Key
  • 8620 Tool Steel
  • Grade 8 Hardware
  • Properly Staked
  • Weight: 11.6oz
  • Made in the USA

WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information:

Additional information

Weight 2 lbs



BCG Coating



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