Spike's Tactical 5.56 M16 Cut AR-15 Bolt Carrier Group

Manufactured by Spike's Tactical
Manufactured by Spike's Tactical
100 Reviews

In Stock

Standard orders will ship out in 1 business days or less if ordered by 3:30 pm CST, Monday-Friday. FFL orders will ship within 5 business days or less as long as we have the information for the transfer destination. NFA items will take longer to ship and are dependent upon ATF processing times.

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Your bolt carrier group is one of the most critical parts of your build. Don't buy an imitation. This is the same BCG Spike’s uses on their builds. These complete bolt carrier groups come magnetic particle inspected and high pressure tested. The carrier is made from 8620 steel and the bolt from no. 158 carpenter steel or 9310 depending on supply. The gas key is properly staked, the extractor spring has been upgraded with an O-ring for increased tension, and all surfaces are MIL-SPEC heavy phosphate coated or internally chrome lined. The Spike's Tactical Spider Logo is engraved on the right side of the carrier to show through the ejection port. Assembled BCG weighs 11.6 oz.


  • Firing pin with hard chrome finish.
  • Cam pin phosphate finish.
  • Retaining pin.

Bolt carrier:
  • 8620 tool steel.
  • Full Auto/M16 cut.

  • 158 carpenter steel or 9310 depending on supply
  • Shot peened.
  • High pressure tested.
  • Magnetic particle inspected.

  • 8620 tool steel.
  • Phosphate finish.
  • Extractor spring.
  • Black extractor insert.
  • Viton O-Ring.

Gas key:
  • 8620 tool steel.
  • Grade 8 hardware.
  • Properly staked.
  • Chrome interior.
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Bolt FinishManganese Phosphate
BrandSpike's Tactical
Caliber Gauge5.56 NATO
Carrier FinishManganese Phosphate
Carrier Material8620 Carpenter Steel
Carrier StyleM16 Bolt Carrier
High Pressure TestedHigh Pressure Tested
Magnetic Particle InspectMagnetic Particle Inspected
Manufacturer.Spike's Tactical
Weight11.6 Oz
California Prop 65 warning

 WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to www.P65Warnings.ca.gov.



Its a Spikes Tactical, what more needs to be said. Was just happy to find one for sell, get more in stock Primary, Ill buy some more form ya.



its great, inexpensive too. primary didn't gouge us and I will keep using them.

Products and service are excellent.


Iv'e used other Spike's products in the past and just like then the quality is great and Primary Arms delivered for a great price! Thanks!

what i was looking for


looks great. friend told me he has 3 in his guns and i started looking. went here first and wow on sale. ordered on the 11th and got it on the 13th. no one gets it to you faster then Primary Arms. thanks guys. still have a few more parts to get to finish build. can't wait to try it out. have purchased from here before and they are great. will buy again.

Great quality


Looks very nice with the spider logo and much better finish than my Rock River.

Spikes Tactical AR15 Complete Bolt Carrier Group -


Meet full expectations,

Spikes BCG


My new BCG functions flawlessly. Always excellent service from Primary Arms. Big thank you to PA.Other retailers should take note of PA cause thats how it's done boys!

Fast shipping, great customer service, nice produc


Nice bcg from spikes tactical. Still in the process of building my ar so I haven't shot it yet but it's from spikes so I'm not expecting any problems. Can't wait to order more from primary arms.

Spikes Tactical Bolt Carrier


Ordererd on a Wednesday night and it was at my door Saturday. Top tier quality and service.

best damn cust serv


out if the phosphate so upgraded me to nickel boron! wooohooo freakin awesome!