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Brownells BRN AR-15/M16 5.56MM BOLT CARRIER GROUP MPI NITRIDE - Brownells - 5.56 MM NATO for sale at TheGunDock
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Brownells BRN AR-15/M16 5.56MM BOLT CARRIER GROUP MPI NITRIDE

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$107.00
SKU: Cr681618
UPC: 050806002371
Model: AZT-M4-556-ST-004
New ✓ In Stock — Ships in 1-3 Days

Brownells | AZT-M4-556-ST-004 | MPN: AZT-M4-556-ST-004 | UPC: 050806002371 | 5.56 MM NATO | Black Nitride | 0.73 lbs

The Brownells BRN AR-15/M16 5.56mm NATO Bolt Carrier Group (Model AZT-M4-556-ST-004) is a full-auto-profile M16 BCG featuring a black nitride finish for enhanced corrosion resistance and durability. It is Magnetic Particle Inspected (MPI) for quality assurance, ensuring reliable performance in AR-15 and M16 platform rifles.

  • Manufacturer: Brownells
  • Model: AZT-M4-556-ST-004
  • MPN: AZT-M4-556-ST-004
  • UPC: 050806002371
  • SKU: Cr681618
  • Caliber: 5.56 MM NATO
  • Finish: Black Nitride
  • Weight: 0.73 lbs
  • FFL Required: No
5.56 MM NATO 0.73 oz Black Nitride

Technical Specifications

Caliber 5.56 MM NATO
Finish Black Nitride
Weight 0.73 oz
Manufacturer Brownells
Model AZT-M4-556-ST-004
SKU Cr681618
UPC 050806002371
Availability In Stock

Product Videos

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Shipping Information

  • Orders typically process within 1-2 business days
  • Ships via major carriers with tracking
  • Tracking information provided for all orders
  • Shipping costs calculated at checkout based on weight and destination

Return Policy

  • 30-day return policy on accessories and non-firearms
  • Items must be unused and in original packaging
  • Contact us for return authorization before shipping items back
  • Original shipping costs are non-refundable

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