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Q&A for JP Enterprises Tuned And Polished Buffer Spring — 11 Questions & 11 Answers

Name JP Enterprises Tuned And Polished Buffer Spring (4.8)
As Low As $20.85 Save Up to 37%
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Q
Matt Ohmann, member, from NY, United States, asked on February 13, 2019

Will this spring work for .556 cal or is it only for 308?

Expert Answer
A
Answered by Ethan C., Gear Expert, from IL, United States, on June 18, 2019

These are the AR-15 springs for .223/5.56 (as well as similar calibers such as .300 Blackout). You can find the .308 version here: https://www.opticsplanet.com/jp-enterprises-308-tuned-and-polished-buffer-spring.html

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Q
Philip, member, from GA, United States, asked on June 21, 2018

What the difference between this model of spring and the J5-BUS-3086S-JPS-OSC-308? Thanks

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A
Answered by Ethan C., Gear Expert, from IL, United States, on June 18, 2019

These are the AR-15 models, the version ending in 308 is for AR-10/AR-308 rifles.

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Q
DGV, member, from AR, United States, asked on December 08, 2021

Is this a Stainless Spring?

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A
Answered by Hunter, Gear Expert, from OH, United States, on January 21, 2022

The JP Enterprises Tuned And Polished Buffer Spring is a chrome silicone spring.

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Q
Steve, member, from CA, United States, asked on July 25, 2020

Hi, I’m building an AR15 with a fixed rifle-length butt stock. If I using the JP rifle buffer spring, do I also use a rifle-length buffer?

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A
Answered by Ethan C., Gear Expert, from IL, United States, on January 22, 2021

That is correct, you would use the rifle spring, and a rifle length buffer.

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Q
Vinnie, member, from TN, United States, asked on April 04, 2020

Is the spring mil spec

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A
Answered by Ethan C., Gear Expert, from IL, United States, on January 22, 2021

This spring would be considered an improvement over milspec.

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Q
Sal, guest, from LA, United States, asked on September 07, 2019

Which model number is the one for an AR-15 carbine chambered in 5.56/.223 ???

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A
Answered by Jonathan D., Gear Expert, from IL, United States, on October 07, 2019

MPN: JPS-OSC is the carbine length model for 223/556.

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Q
Rudy, member, from TX, United States, asked on November 11, 2018

Will this work for AR Pistol?

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A
Answered by Aggieman12, member, from TX, United States, on April 05, 2019

As long as everything else is correct, there shouldn’t be a problem. In other words, if it would function with a standard spring then swapping it out for the JP equivalent shouldn’t cause any issues. There are caveats for anything, but this is generally correct.

If you’re building your own pistol then do your homework because buffer weight is important given your gas system/barrel length/caliber/etc. Plenty of variables.

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Q
BOB, member, from MO, United States, asked on August 04, 2025

Is this considered a flat spring ?

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Q
Roge, member, from NC, United States, asked on May 31, 2025

Out of all spring available, which spring would be recommended for a 10.5 upper standard lower with a delta team tactical 3 position FRT trigger?

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Q
Ismael, member, from FL, United States, asked on September 05, 2024

I’m sorry for ignorance, but will this work with a Springfield Saint Victor ?

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