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

Manufactured by Spike's Tactical
SKU: ST5BG03
MPN: ST5BG03
Manufactured by Spike's Tactical
64 Reviews
$202.50

In Stock

Orders of non-FFL items will ship same day if ordered before 3:30pm CST (M-F). FFL orders will ship within 5 business days if transfer details are provided.

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Details

Details

Your bolt carrier group is one of the most critical parts of your build. Don't buy an imitation. Spike's Tactical AR-15/M16 Nickel Boron Bolt Carrier Group. These complete bolt carrier groups come magnetic particle inspected and high pressure tested. The carrier is made from 8620 steel and the bolt from 9310 tool steel. The gas key is properly staked, the extractor spring has been upgraded with an O-ring for increased tension, and all surfaces are coated with nickel boron. Nickel boron is much easier to clean and can help your firearm run more reliably when heavily fouled or with little lubrication. 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.

Includes:

  • Firing pin with hard chrome finish.
  • Cam pin with nickel boron finish.
  • Retaining pin.

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

Bolt:
  • 9310 tool steel.
  • Shot peened.
  • High pressure tested.
  • Magnetic particle inspected.

Extractor:
  • 8620 tool steel.
  • Nickel boron finish.
  • Extractor spring.
  • Black extractor insert.
  • Viton O-Ring.

Gas key:
  • 8620 tool steel.
  • Grade 8 hardware.
  • Properly staked.
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Specifications

Bolt FinishNickel Boron
Bolt Material9310 Steel
BrandSpike's Tactical
Caliber Gauge5.56 NATO
Carrier FinishNickel Boron
Carrier Material8620 Carpenter Steel
Carrier StyleM16 Bolt Carrier
High Pressure TestedHigh Pressure Tested
Magnetic Particle InspectMagnetic Particle Inspected
ManufacturerSpike's Tactical
PlatformAR-15
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.

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Ratings & Reviews

64 reviews

4.5
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spikes tactical nib bcg

by

Great addition to my Spikes AR.......probably wouldnt have got this but saw it on sale and was still below 200 bucks after shipping. I know Spikes makes quality products and PA has great prices and fast shipping, what else could you ask for. Thanks for the free hat too.

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Great

by

Great bcg came faster than I expected.

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Spikes Tactical Bolt Carrier

by

Great product. Excellent fit and finish.Fast shipping as always.

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Spike BCG Nickel Boron

by

Great service. I sent in a E-mail to see if this part was in stock and the next day they sent me a E-mail saying that they did have them in. I placed my order and waited and next thing you know after a bit of time it was in my hand! I wish Google would had come up with this site. I don't know why it did not but after looking around all over the net using all sorts of keywords I found this company and it had my part that I was looking for! This place is Real and you will get your stuff!

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Spikes nickle boron bolt 556

by

Had been trying to find this bolt for a week. EVERYBODY was out of stock, even called spikes directly w no luck. I found Primary Arms online, and guess what, they had it! I ordered it for a great price, and got it in a few days. Very happy! Great prices, fast shipping!

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Great BCG

by

Havent installed it yet, but BCG looks great, great machine work

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NiB BCG

by

Haven't used this thing yet but heard nothing but good things about it. So far, all is as expected. Finish was not as aesthetically clean as expected but not too big of a deal.

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Excellent!!

by

I am currently building an AR pistol and these guys have the fastest shipping anywhere. I've placed many different orders with them and very one of them has shipped same day and arrived max three days later. As for the product, its spikes so you know its quality and its exactly what I ordered and what got me to the site was some of the best prices on the web! Thanks Primary Arms!

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Been waiting for the price drop

by

I like Spike's BCG's they are well made. While I wouldn't pay $209 for one, I will spend $169. I have been waiting for these to go on sale for an all Spikes build I was working on. I still replace the extractor spring with the BCM spring, now its perfect!

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Supersonic

by

I ordered this Spikes bolt assembly and it was in my AR three days later. The service was fast, I mean really fast; and the product was awesome.

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