JP Enterprises Enhanced 5.56/.223/300BLK Bolt Assembly Kit

Manufactured by JP Enterprises
Manufactured by JP Enterprises
1 Review

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NOTE: Limit 5 per household. Quantities exceeding 5 will not allow checkout.



JP Enhanced Bolt assembly completion group includes firing pin, cam pin and retainer pin for 5.56/.223/.300BLK calibers. This version of the bolt is compatible with any AR-15 platform using a Mil-spec bolt carrier and sub-components. The latest edition JP EnhancedBolt is made from SAE 9310 high-grade steel. This material makes for an extremely hard surface with a tough, ductile core resistant to structural failure and a life expectancy far exceeding Mil-spec C-158 bolts. SAE 9310 is the same type of steel used in the transmission gears of Formula One racecars, and the high-load application of a bolt assembly is ideal for this state-of-the-art material; the results of actual full-auto endurance torture tests prove it. The design of the JP EnhancedBolt addresses many other fine points, the most important of which is the utilization of a standard configuration extractor. Most users want the ability to replace extractors and other parts with commonly available Mil-spec parts instead of being dependent on proprietary parts that can be difficult to acquire. Therefore, this new bolt will accept standard extractors, pins and springs.
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Bolt FinishChromium Nitride PVD
Bolt Material9310 Steel
BrandJP Enterprises
Caliber Gauge5.56 NATO
High Pressure TestedUntested
Magnetic Particle InspectUntested
Manufacturer.JP Enterprises

WARNING: This Product can expose you to chemicals which is known to state of California to cause Cancer and Reproductive Harm. For more information, see

Ratings & Reviews

1 review

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Best bolt I have ever owned, but.....


This is by far the best bolt I have ever owned in terms of fit, finish, and craftsmanship. But, I wish JP would include an equally nice cam pin to match so I don't have to hunt all over to find one with the quality to match.