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JP Enterprises Jam Nut 1/2X28
As Low As $12.30 Save Up to 35%
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Most Helpful Positive Review Serves it's Purpose
I needed a little extra head room for my compensator and this did the trick. I purchased JPJN-12B-750 which is 3/8 in. thick. Not much to say, threads are solid and the machining is good. Finish is nice and not an afterthought. If you want to add some length this is an easy way to get there.
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Simple well made solution

by OldBones, Verified Owner from CA, United States Written on October 16, 2025
Like anything JPE provides it is well machined. I would recommend this and other items by JPE...
Would recommend: Yes
Was it helpful to you? Yes | No

Very well made

by Mark Johnson, Verified Owner from MN, United States Written on November 2, 2024
Precision timing nut for brakes and comps. Don't go cheap on these necessary parts. The threads are clean and precise and it just works.
Pros:
  • Work better and faster than other methods
Cons:
  • cost
Best Used for:
  • brakes and compensators
Would recommend: Yes
Was it helpful to you? Yes | No

best jam nut out there

by Casey Osborn, Verified Owner from NE, United States Written on December 14, 2023
JP Enterprises makes good stuff and I really like their jam nuts
They seem to match mil spec parts better and can't beat the quality. I've never had one come loose
This one is just for looks as it will be behind a SOLGW nox 9 13.7 build
Would recommend: Yes
Was it helpful to you? Yes | No

Serves it's Purpose

by Pierce, Verified Owner from MN, United States Written on December 14, 2020
I needed a little extra head room for my compensator and this did the trick. I purchased JPJN-12B-750 which is 3/8 in. thick. Not much to say, threads are solid and the machining is good. Finish is nice and not an afterthought. If you want to add some length this is an easy way to get there.
Pros:
  • well made
Cons:
  • None
Best Used for:
  • Added length
Would recommend: Yes
Was it helpful to you? Yes | No
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