Bolt Carrier Group- Lightweight Nickel Boron



Available on backorder


Shipping & Returns

Shipping & Returns

Return Authorization is required for all returned merchandise. Please email  or call 407.928.2666 to acquire a Return Merchandise Authorization Number (RMA.)

Review our complete Return Policy

Financing Available

Complete the credit application. You will be asked to provide your basic information. Click Here to apply.

How It Works

Minimum $500 Order




NOTE: Covid-19, protests, and riots has created a strong demand for firearms. We are fulfilling orders as quickly as possible, however you will likely experience longer than usual delivery times due to any delays or back orders that this may have caused. Thank you for your patience.

Your Bolt Carrier Group is one of the most critical parts of your build. Don’t buy an imitation. This is the same BCG we use on our builds.


Complete Nickel Boron Plated M-16 BCG

Nickel Boron Coating Inside and Out (Bolt, Carrier, and Gas Key)

Laser Engraved with ST Spider logo

Mil Spec Carrier

  • 8620 Tool Steel
  • Full Auto M-16
  • Holes for Reduced Weight (-1oz)

  • Bolt

  • 158 Carpenter Steel
  • Shot Peened
  • High Pressure Tested (HPT)
  • Magnetic Particle Inspected (MPI)

  • Mil Spec Extractor

  • 8620 Tool Steel
  • Nickel Boron Finish
  • Extractor Spring
  • Black Extractor Insert
  • Viton O-Ring

  • Mil Spec Gas Key

  • 8620 Tool Steel
  • Grade 8 Hardware
  • Properly Staked

  • Firing Pin with Hard Chrome Finish

    Cam Pin Nickel Boron Finish

    Retaining Pin

    Weight: 10.5oz