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Questions & Answers
Is this a “type II bolt face”? Expert Answer

Yes, this is a Type II bolt face.

by Ethan C., Gear Expert, May 21, 2018
Is this the full bolt assembly with cam and firing pin?

No, this is just the bolt and extractor. There is a similar question asked that has a reply linked to the assembly that includes both pins.

by YankeeBluejeans, Verified Owner, February 8, 2026
Customer Reviews
Helpful Positive Review
Awesome Bolt by Clint, Verified Owner, May 31, 2024
Really well finished and nice tolerances. This is my go-to bolt for any new builds.
1/1 found this helpful
Helpful Positive Review
Best AR15 Bolt Period! by NATHAN CUNNINGHAM, Verified Owner, May 31, 2025
This is my 3rd JP Enhanced DLC Bolt for 223/556. These are the best quality, machined, and DLC coated bolts ive come across. Even Chad from SOTAR does a full bolt teardown and says their basically machined perfect and the DLC coating is also some of ...
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Product Info for JP Enterprises Enhanced Bolt Assembly

The SAE 9310 of the JP EnhancedBolt is a superior steel alloy in virtually every way compared to the C-158, whether in its resistance to structural failure or life expectancy, both of which far exceeding the Mil-spec. Just as with the transmission gears for Formula 1 racers which are also made from 9310, the operational demands of a bolt assembly are ideally suited to this state-of-the-art material, with actual full-auto endurance torture tests prove it.image

Beyond its material advantages, the design of the JP EnhancedBolt boasts many other advantages, including the addition of material around the cam pin hole to eliminate this inherent weak point of the bolt design itself. Each bolt also comes assembled with JP Enterprises' proprietary Enhanced Ejector, Enhanced Extractor (.308 and Grendel) and Enhanced Gas Rings for improvements in every subcomponent. Yet even with these advanced components, all EnhancedBolts (excepting JP Enterprises' .308 high pressure model, for obvious reasons) are fully compatible with the readily available Mil-spec subcomponents, including a standard configuration extractor-all the benefits of a state-of-the-art proprietary platform with none of the inconvenience.

Specifications for JP Enterprises Enhanced Bolt Assembly:

Manufacturer: JP Enterprises
Color: Black
Finish: Black DLC
Fabric/Material: SAE 9310 Steel
Condition: New

Features of JP Enterprises EnhancedBolt Assembly:

  • Proprietary bolt design
  • Compatible with any AR-15 platform using a Mil-spec bolt carrier and sub-components
  • Additional Material around Cam Pin Hole to Eliminate Inherent Weak Point of Bolt Design
  • Improved Lug Geometry for Reduced Wear and Easier Locking/Unlocking
  • Jp Enhanced Extractor optimizes Extraction Function and Eliminates Multiple Common Ejection Failures
  • JP Enhanced Ejector Design Mitigates Case Head Extrusions and Reduces Brass Smear
  • JP Enhanced Gas Rings Reduce Internal Friction and Wear of the Bolt Carrier While Maintaining Gas Seal Longer
  • DLC Coating Offers Super-High Durability, Lubricity and Ease of Cleaning

Package Contents:

  • JP Enterprises EnhancedBolt Assembly

JP Enterprises Enhanced Bolt Assembly Orderable Models

List of Orderable Models

  • JP Enterprises Enhanced bolt assembly, .223, Black JPEB-223 , MPN: JPEB-223 , UPC: 812872020709 , Code: J5-ABA-EF67-JPEB-223
  • JP Enterprises Enhanced Bolt Assembly, 6.5 Grendel, Black, JPEB-6.5G , MPN: JPEB-6.5G , UPC: 812872020723 , Code: J5-ABA-EF67-JPEB-6-5G

JP Enterprises Enhanced Bolt Assembly Unavailable & Discontinued Models

List of Unorderable Models

  • USED JP Enterprises Enhanced Bolt Assembly, 6.5 Grendel, Black, JPEB-6.5G, EDEMO2, Used, Condition Like New , MPN: JPEB-6.5G-EDEMO2 , Code: J5-ABA-EF67-JPEB-6-5G-EDEMO2
  • JP Enterprises Enhanced Bolt Assembly, .308, Black JPEB-308MP , MPN: JPEB-308MP , Code: J5-ABA-EF67-JPEB-308MP
  • JP Enterprises Enhanced bolt assembly, .308, Black, JPEB-308 , MPN: JPEB-308 , UPC: 812872020716 , Code: J5-ABA-EF67-JPEB-308
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Last updated 2026-09-14 UTC.