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.

Missing Ejector Pin


Mine came missing the ejector pin spring o-ring and roll pin. Left customer service a voicemail this morning - will report back. Probably a one off odd deal...

Great BCG


Top notch product in my opinion. Functions great. Looks awesome. Will be my go-to on my next build.

Good Stuff!

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Works as expected and if it didn't, Spikes would make it right. I prefer Spikes Tactical due to their quality but their customer service is outstanding as well.

Gas key not staked

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I’ve never used any spikes products, but have always heard and read good things about their products. Staking the gas key is being done by even the cheapest manufacturers now, and isn’t something that I would expect spikes to overlook. It makes me question the overall quality of the bcg. Spend the extra money and get a BCM.
<br>From PA: That is not normal. Please get in touch with us so we can get you swapped out with a properly staked BCG.

The best


In the past, I have always used the BCM Gunfighter BCGs. I decided to try the Spikes Tactical after reading some very good review and I was not disappointed. Everything is as it should be. Very nice fit and finish.
<br>Great product, fast shipping and great price.
<br>Primary Arms and Spikes Tactical are the best.

Made in USA - Ultra Cool

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Very nice, sturdy, works flawless. Cool factor is the Spider logo...Ultra Cool factor, mine has "Made in USA" engraved on it. My wife like it so much, she appropriated it for her AR. Share the wonder....

Excellent BCG

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Excellent BCG. Works flawlessly, Fits perfectly. Good quality product.

Quality and Performance

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What can I say. It is Spike's and it simply works. No head space issues, no staking issues. It has cycled every round I've thrown at it without fail.

Best Dollar for Dollar

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I've purchased two of these as of today August 28th 2018. I got the second one because the first one has worked flawlessly. I put it in a Spike's Tactical custom build for my wife in 300 AAC Blackout. We've put a couple hundred rounds trough it. No FTE, FTF, or malfunctions whatsoever. High quality, good price, made in USA.

My go to BCG

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Just purchased my 3rd one of these. You'll be hard pressed to find a better BCG in the prince range. This will be my go to BCG from now on. No need to shop around anymore.