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JP Enterprises SCS System Buffer Retainer Pin & Spring Kit
$12.95 $12.30
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Most Helpful Positive Review Works as advertised!
If you have a JP SCS buffer I can highly recommend you pick up one of these. For years now I've been running my guns without any retainer pin and while it made it easy to get the buffer out, it was also a pain when the buffer would just fall out if I wasn't careful when I opened up the gun. The on...
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Most Helpful Negative Review Spring was all sorts of messed up
The spring was all bent and disproportioned. It seems like the components are good quality but they aren’t up to par with manufacturing I guess. Seems like a pretty obvious quality control issue. If something like this got through I do not recommend.
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JP Buffer Retainer

by Morrado, Verified Owner from CA, United States Written on May 29, 2026
This buffer retainer sports a straight shaped edge to perfectly support the flat edge of the weighted buffer better than a rounded pin. Increased surface area is definitely a plus.
Would recommend: Yes
Was it helpful to you? Yes | No

So much easier

by jingle045, Verified Owner from OR, United States Written on April 28, 2026
The small things matter and this little buddy certainly counts. Turns a frustrating experience removing the SCS into the simple operation it should be.
Would recommend: Yes
Was it helpful to you? Yes | No

Great for JP Enterprise SCS System

by Tigre, Verified Owner from CA, United States Written on April 14, 2026
Purchased this for my Radian M1 build. Didn't need the shim, but after installing it, the SCS system had las play (before it would kind of slide back and forth and make a sound if you flipped the rifle upside down). It seems well made and I'm very happy with my purchase. Definitely would purchase again if I purchase another SCS
Would recommend: Yes
Was it helpful to you? Yes | No

Great solution

by Chris, Verified Owner from AZ, United States Written on March 10, 2026
I have been using the JP Silent Captured Spring, SCS, buffer assembly in my competition AR and 2 other ARs with Maxim CQB stocks. I never installed a buffer retainer as it is not required like a traditional buffer and spring.

All that said, I have started changing the springs and weights on my competition AR to better tune the firearm. I have also been using different Maxim CQB buffers and springs with different upper configurations and by adding these buffer retainers I do not have to fight getting the upper open or back on with the SCS or traditional buffer/springs, and the SCS does not just fall out.

Sometimes the small things make a bigger difference than ever thought possible.
Pros:
  • Smooth operation with SCS
  • Not overly costly for a specialty item
  • Easy removal and install of SCS and traditional buffers
Cons:
  • Does not come with Maxim CQB brace or stock kit
Best Used for:
  • All JP Silent Capitured Spring buffers and Maxim CQB buffers
Would recommend: Yes
Was it helpful to you? Yes | No

Right part for the job

by APO, Verified Owner from CA, United States Written on November 8, 2025
Does exactly as it says. Keeps the jp buffer spring set up in the buffer tube.
Would recommend: Yes
Was it helpful to you? Yes | No

makes it easy

by Stuart Moore, Verified Owner from TN, United States Written on November 7, 2025
The JP buffer spring can be monotonous with a regular retainer spring to install and remove but, using the JP retainer spring it has become a much simpler process.
Would recommend: Yes
Was it helpful to you? Yes | No

works well

by WonTonChickon, Verified Owner from OR, United States Written on October 25, 2025
Got this because I swapped out the budget and spring for a JP SCS set up. It fits. It works.

JP says you really don't need this. Just remove the catch all together. But having this makes me feel better.
Would recommend: Yes
Was it helpful to you? Yes | No

awesome product

by Curtai, Verified Owner from KS, United States Written on October 11, 2025
It works exactly like it should, no issues with installation and I would order it again
Would recommend: Yes
Was it helpful to you? Yes | No

It's a must have

by Vitoss, Verified Owner from WA, United States Written on September 14, 2025
It's a must have, works great Should of gotten it long time ago. No my buffer doesn't slide out every time I open up my upper.
Would recommend: Yes
Was it helpful to you? Yes | No

Great availability.

by Mryd92, Verified Owner from MI, United States Written on July 6, 2025
I won't have a chance to test this out until my build is complete but I'm certain of the quality. What I appreciated the most was availability on OpticsPlanet where other websites didn't have them all in one place at a decent price.
Pros:
  • reasonable price
Cons:
  • None
Would recommend: Yes
Was it helpful to you? Yes | No
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Last updated 2025-11-12 UTC.