Spikes Tactical Nickel Boron Bolt Carrier Group - HPT/MPI M16 BCG (5.56)

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Product Code: ST5BG03
List Price: $225.00
MSRP: $225.00
Sale Price: Sale Price: $221.95
Savings: $3.05
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Spikes Tactical Nickel Boron Bolt Carrier Group - HPT/MPI M16 BCG (5.56)

Now you can get a proven Spike's Tactical M16 BCG Coated in Nickel Boron! This is currently the finest BCG on the Market! They Come Complete with Bolt Carrier, Complete Bolt, Cam pin, Firing Pin and Firing pin retaining pin.All bolts are HPT/MPI testing to ensure the highest quality available on the market. The complete Nickel Boron BCG also goes well with our ST Battle Trigger as it's also coated in Nickel Boron. The Trigger group isn't needed but it's a nice added touch and a huge improvment over a stock/standard Mil-Spec trigger group. It makes the action super smooth when the hammer and carrier are both coated in Nickel Boron.

Nickel Boron has proven itself to be the Most durable finish on the market. It's so good that it's being adopted by the Military and many Government agencies. It will Never chip, peal, or flake off. It's much smoother than Hard Chrome, it's easier to clean and you can run it almost lube free for thousands of rounds due to it's self lubricating properties. These BCG's are a huge improvement over a Phosphated BCG, They are even an improvement over Hard Chrome.

These Nickel Boron BCG's are coated for us by FailZero to our specs using EXO Technology. This BCG is fully assembled and ready to drop in your upper and shoot. These are the heavier M16 Bolt Carrier group and will work with any semi auto or full auto AR15 or M16.


  • Machined from 8620 Tool Steel (Carrier) and 158 Carpenter Steel (Bolt)
  • Shrouded firing pin
  • Nickel Boron Coating inside and out (Bolt, Carrier, and Gas Key)
  • Forged Mil-Spec gas key attached with Grade 8 hardware and Properly staked
  • Bolt is shot Peened and HPT/MPI
  • Mil-Spec Extractor Spring, black extractor insert, Viton O-Ring
  • Tool Steel Extractor
  • Includes Spike's Tactical Lifetime Warranty