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Questions & Answers
Does the 308 bcg work for AR10 or only the lr10?

This is a DPMS compatible bcg. It can be used in a LR308 gen 1 DPMS pattern upper receiver. It will not work in an Armalite AR10 pattern upper receiver. If your upper receiver is a LR308 gen 1 type, it should work. I have been using mine for years with no regrets.

by Robert, Verified Owner, March 25, 2022
Is this the high pressure bolt carrier Expert Answer

No, the JP Enterprises High Pressure Enhanced Bolt Assembly can be found by using the link below:
https://www.opticsplanet.com/jp-enterprises-high-pressure-enhanced-bolt-assembly.html

by Ethan, Gear Expert, October 24, 2022
Customer Reviews
Helpful Positive Review
Solved Reliability Issues by Merlyn Leger, Verified Owner, October 9, 2022
Cry once, if I forget that motto I quickly get reminded on the very next build. Was having a number of feed/extraction issues with a cheaper bolt but this resolved all my issues and is known as one of the best bolts in the industry. Peace of mind mea...
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5/5 found this helpful
Helpful Positive Review
Good quality product by Ken, Verified Owner, June 2, 2022
JP Enterprises has a great reputation for quality products. The one issue I have seen people complain about is the looseness of the gas rings. From what I can tell this is normal. The gas ring is a precision piece that is just the right size. It does...
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7/7 found this helpful
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JP Bolt assembly by Brandon Smith, Verified Owner, February 9, 2025
Great replacement bolt offered by OpticsPlanet. Absolutely top of the line product as always!. I love the "best rated" products that OP puts on their website. It lets me know what other customers thought about the product. Which is important to an en...
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1/1 found this helpful
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Titanium Bolt by Dach, Verified Owner, November 23, 2023
Great bolt, can feel the difference in quality vs normal mail spec just holding the bolt in your hand.
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Helpful Positive Review
BCG Parts for existing bolt carrier by Michael, Verified Owner, July 7, 2017
I Bought this set to go with a modified bolt carrier. Parts are durable and well machined. Everything fit together smoothly and quickly. Happy with purchase, even if a little pricey. I took a star off due to overall price.
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Helpful Positive Review
jp rifles bolt assembly by CHRIS URSINY, Verified Owner, June 19, 2019
purchased this a few months back, along with the bolt carrier, stuck them in my bcm, functioned great smooth as silk in operation, ran about 800 rounds through the units and no abnormal wear, no problems so i am satisfied with units.
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Product Info for JP Enterprises Enhanced Bolt Assembly Group

Enhanced bolt assembly completion groupimage

Specifications for JP Enterprises Enhanced Bolt Assembly Group:

Manufacturer: JP Enterprises
Color: Black
Finish: Black DLC
Fabric/Material: Steel
Carrier Material: 8620 Steel
Bolt Material: 9310 Steel
Condition: New

Package Contents:

  • JP Enterprises Enhanced Bolt Assembly Group

JP Enterprises Enhanced Bolt Assembly Group Orderable Models

List of Orderable Models

  • JP Enterprises Enhanced Bolt Assembly Group, .223/5.56, Black DLC, JPBC-EB223 , MPN: JPBC-EB223 , UPC: 812872020747 , Code: J5-BCG-964DF-JPBC-EB223
  • JP Enterprises Enhanced Bolt Assembly Group, 6.5 Grendel, Black DLC, JPBC-EB6.5G , MPN: JPBC-EB6.5G , UPC: 812872020778 , Code: J5-BCG-964DF-JPBC-EB6-5G
  • JP Enterprises Enhanced Bolt Assembly Group, .308 Win., Black DLC, JPBC-EB308 , MPN: JPBC-EB308 , UPC: 812872020754 , Code: J5-BCG-964DF-JPBC-EB308
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