Bravo Company Manufacturing AR-15 Bolt Assembly

13 Reviews

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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The BCM AR 15 Bolt Assembly is machined from carpenter No. 158 steel, shot peened for increased strength, and is high pressure tested and magnetic particle inspected. Includes tool steel machined extractor, ejector, and BCM extractor spring. Whether you're upgrading your AR15 BCG or need a high quality spare part, the BCM bolt assembly is the perfect solution.

  • MIL-SPEC carpenter no. 158 steel (bolt)
  • High pressure tested and magnetic particle inspected
  • Shot peened bolt
  • Tool steel extractor
  • BCM extractor spring
  • Black extractor insert
  • MIL-SPEC crane O-ring

Expect nothing less than professional grade weaponry from Bravo Company USA, one of the nation’s largest stocking inventories of AR-15, M4, and M16 parts and accessories.
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Bolt FinishManganese Phosphate
Bolt MaterialCarpenter 158 Steel
BrandBravo Company Manufacturing
Caliber Gauge5.56 NATO
High Pressure TestedHigh Pressure Tested
Magnetic Particle InspectMagnetic Particle Inspected
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

Ratings & Reviews

13 reviews

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Solid bolt!

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BCM, good solid parts from a good, solid company. Bought this one for a backup from PA, one of the best sources in the industry.

AR15 BCM bolt assembly

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As always prompt shipping by primary arms! Been using bravo Company components for years, as always no issues with headspace and quality built parts.

Backup for the Range

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Having a backup bolt clean and ready to go is a luxury, but not a bad idea. In today's world having anything backup in AR-15 is a good idea.

Cratering on CCI 400 primers

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I'm loading 75 gr heads with 24 gr of TAC. A very common load. The CCI 400 primers were cratering. This didn't happen with other primers like #41. This was happening with my 3 AR bolts. Things being what they are I couldn't walk away from thousands of small rifle primers. Two of my bolts are Rock River and the third was also a name brand. I looked into having a bushing installed on the bolts but again the way things are I didn't want to send my bolts out to have that done and I couldn't find over sized firing pins. For 556 ARs its recommended that the primers should have a wall thickness of .025. CCI 400 are .020. Bottom line is these bolts run the CCI primers with no cratering.


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Used this in my dmr build went perfectly with my white oak armory spr barrel head spaced as it should and works great! Even came with a o-ring for the extractor spring.. great price on this to

It’s BCM, what’s to be said

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Let me start by saying that Primary Arms did a great job promptly shipping out my order, but the problem came dealing with Fed Ex. I ordered on Monday, P.A shipped on Wednesday and it took until the following Tuesday for Fed Ex to deliver. They first said package would be delivered Saturday, then Sunday, the an exception was issued, then it was finally delivered on Tuesday. Not very good considering the cost of shipping IMO.

It’s BCM what can be said

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Quality product and I wouldn’t hesitate to buy again. PA was prompt with shipping, but FedEx took a couple extra days.

It’s BCM quality


You just can’t go wrong with BCM!!

Best AR-15 Bolt

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BCM I believe makes the best bolts and having an extra is a good idea.

Great Bolt Assembly

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Excellent assembly that I purchased for backup for already purchased BCM BCG.