Dead Bolt Ultra-Light Weight Competition AR-15 Bolt Carrier Group - QPQ Nitride & Nickel Boron

$ 225.85

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Ultra-Light AR-15 Bolt Carrier Group BCG

We designed our Dead Bolt ultra-light weight competition grade AR-15 bolt carrier group to be among the lightest on the market without compromising strength or functionality. Engineered for speed, dependability and weighing in at a mere 8.9 ounces complete this bolt carrier group exceeds all of its peers in material specification, finish and balance. It's also as beautiful as it is functional. 

We chose the durable QPQ method of Salt Bath Nitride finish for the carrier for its natural slickness and Nickel Boron (Nib) finish for the bolt, gas key and cam pin for its lubricity and ease of maintenance making all of the chosen components extremely corrosion and wear resistant. 

Detailed Specifications:


  • Bolt Material: Carpenter No. 158® Steel
  • Bolt Testing and Inspection: High Pressure Tested (HPT) and Magnetic Particle Inspected (MPI) 
  • Heat Treated to MIL-SPEC
  • Bolt Hardening Technique: Shot Peened to most current military specification
  • Back of Lugs Chamfered for Reliability
  • Spring, Insert, & "Crane" O-Ring Installed
  • Bolt Finish Inside and Outside: Nib Nickel Boron


  • Extractor Material: 4340 Aircraft Grade Steel
  • Extractor Hardening Technique: Shot Peened to most current military specification, Heat Treated to RC 48-53
  • Shot Peened Per MIL-SPEC
  • Extractor Finish: Nib Nickel Boron


  • Carrier: 8620 Tool Steel
  • Forward Assist Serrations
  • QPQ - Salt Bath Nitrided
  • Carrier Weight w/ Gas Key (w/o Bolt or any Pins): 6.31 Ounces

Gas Key:

  •  Key: 4140 Steel Material
  • Fully Heat Treated
  • Nib Nickel Boron Finish
  • Grade 8 Fasteners - Properly Staked to Mil-Spec ( MIL-R-63997B(AR))

Cam Pin: 

  • Cam Pin Material: 4340 Aircraft Grade Steel
  • Nib Nickel Boron Finish

Firing Pin:

  • Firing Pin Material: AISI 8740 Steel
  • Firing Pin Finish: Hard Chrome to Mil-Std 171
  • Firing Pin Retaining Pin Material: Hardened Spring Steel
  • Firing Pin Retaining Pin Finish: Phosphate to Mil-Std 171

Light Weight AR 15 Bolt Carrier Group