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

Non-FFL orders placed before 3:00pm CST will ship same business day. Non-FFL orders placed after 3:00pm CST will be shipped the next business day. FFL orders will ship within 3 business days once 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 TestedYes
Magnetic Particle InspectYes
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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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 Tactical Bolt Carrier

by

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

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Great

by

Great bcg came faster than I expected.

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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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Disappointed

by

Finished my build and put it in and it was great, until I function checked. When I let the hammer fall it jammed, would not extract and the bolt would not rotate even with heavy lube. Took disasembly and force, tried it in factory Colt, DD, and Stag. Same prob. My BCM bcg works fine in my build, but wanted NiB. The part I got seemed to be machined to the wrong specs (I know that FailZero coats some of these products, and I read a post by their head gunsmith that stated that if the bcg does not fit you need to have your headspace checked that it is not match grade and is instead mil spec as these bcg's are patterned after Colt style rifles... But it would not work in my colt?). Returned to PA for refund. They are out of stock. How does that even leave Spikes Tactical not functioning? I have to add that PA is still the great. They handled it well, gave me return shipping labels and a full refund. I will try another when in stock.

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Spikes Tactical Bolt Carrier w Nickel Boron

by

Excellent service as usual, fast delivery!

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Great product!

by

Excellent product from spikes. The nickel boron finish is the best out there. Definately will be buying more from primary arms.

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Spikes Tactical Bolt Carrier Group with Nickel Bor

by

Excellence company to deal with! super fast shipping.

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Exactly what I expected and quick shipping.

by

Everything was exactly as expected and the shipping time was great.

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Spikes Tactical BCG NiB

by

Breakdown and inspections reveals a great looking bolt, tight bolt to BCG fit, properly staked ext... Haven't had a chance to shoot it yet.Always a pleasure to deal with PA

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