AR-15 Nitride Enhanced Bolt Carrier Group - Auto [5.56MM/300BLK]


Nitride coated enhanced bolt and auto carrier for 5.56MM / .223 cartridges. Will also work with 300 AAC blackout. High quality mil-spec+ with properly staked gas key. 9310 steel bolt with an 8620 steel carrier. Tight piston rings for correct function and virtually no gas leakage. MPI tested bolt. A pristine and reliable BCG for your AR-15 rifle!

This is the same bolt carrier groups we use in our Match-Grade line of rifles.

Advantages of Nitride:

  • Increased wear-resistance
  • Fatigue strength
  • Corrosion resistance
  • Lubricity
  • Cosmetic Appeal
  • Heat Treatment
  • Inexpensive when compared to nickel coatings

Product Features:

  • 9310 Steel Bolt - MPI/HPT Tested - Shot Peened
  • 8620 Steel Carrier
  • Properly Staked Gas Key
  • Nitride Coated Carrier
  • Nitride Coated Gas Key
  • Correct Piston Ring Tightness
  • Heavier M16 (Auto) Carrier

Detailed Specs:

Coating: Nitride

Weight: 11.3 Oz.

AR-15 Nitride Enhanced Bolt Carrier Group - Auto [5.56MM/300BLK]
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  • Item #: DEZ-1002N-BCGA
Price $159.99
Availability Out-of-Stock

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