JP Enterprises Enhanced One-Piece Gas Ring - .308

Manufactured by JP Enterprises
Manufactured by JP Enterprises
5 Reviews

Out of Stock

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As a replacement for traditional three-piece gas rings, the JPEGR-308 utilizes a one-piece design similar to the Mcfarland rings. Unlike the Mcfarland rings, though, our precision-ground gas rings are engineered to precisely suit DPMS-patterned carrier group components such as our own JP EnhancedBolt. After testing numerous minute grind callouts, the final JP Enhanced Gas Rings spec is the perfect balance of a solid gas seal with a very low-friction relationship between rings and bolt carrier. Reducing the resistance between these components directly results in an overall increase in the rifle's operational window while the edge of the rings utilizes the cycling action itself to scrape the walls of the carrier, helping shed fowling with every shot. The JPEGR-308 is not compatible with large-frame Armalite bolt assemblies.
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BrandJP Enterprises
Manufacturer.JP Enterprises
TypeGas Ring
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

5 reviews

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Don't fit in a lwrc repr bolt carrier group


Don't fit in a lwrc repr bolt carrier group not sure if these fit in any other bolt carriers that are not a jp enterprise bolt carrier

Back up for a rainy day.


Haven't installed, but purchased as a back up.

AR10 needs this


I was having some issues with FTF and fire some specific .308 rounds. Quality ammo was not affected. However, I would like to use any ammo in this platform and decided to try this ring to see if there was a difference. The gas ring has resulted in almost all light primer strikes going away. I've had one on a steel cased round since installing and have tested appx. 300 rounds. Prior to installing this gas ring I had 1 or 2 out of 20. I highly recommend this ring for your AR10.

Best gas rings ever


Super smooth !!!!! Took a new mil spec ring that was very rough and tight in a new BCG I bought from P.A. And replaced it with the jp enhanced . Love it!! Only regret is I wish I bought 2 of them!!!



Jp has not let me down yet!
<br>Great product and primary has the fastest ship in the business!