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Questions & Answers
Will this spring work for .556 cal or is it only for 308? Expert Answer

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

by Ethan C., Gear Expert, June 18, 2019
What the difference between this model of spring and the J5-BUS-3086S-JPS-OSC-308? Thanks Expert Answer

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

by Ethan C., Gear Expert, June 18, 2019
Customer Reviews
Helpful Positive Review LOVE JP SPRINGS by Tommy, June 12, 2024
Smoothest buffer spring for the price. The instructions say to lightly coat them with lithium grease. I think that’s to keep the finish smooth. They are absolutely silent in all of my builds. I’ve used the extra power spring in my over-gassed carbine...
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2/2 found this helpful
Helpful Positive Review Best Buffer Spring IMO. by Casey Osborn, Verified Owner, February 27, 2019
I use these JP Tunes and Polished Buffer Springs on all of my AR platform builds. They run very smooth and quiet. When building an AR pistol, this spring used with an H2 Buffer seems to be the perfect combo. I have one on my 300blk pistol and my 556 ...
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13/13 found this helpful
Helpful Positive Review improvement by dan, Verified Owner, September 3, 2022
Definitely an improvement in cycling at least for me. I felt like i just needed a little more spring tension in the buffer and this did the trick. Quality of the finish on these is outstanding! Cost effective improvement to your lower id say
1/1 found this helpful
Helpful Positive Review Excellent spring! by milsurprifles, Verified Owner, December 4, 2022
This is a fantastic, well made spring. Highly polished and very smooth operating. I paired it with a tungsten Spikes buffer and they work very well together. Excellent part from JPEnterprises. I’d recommend.
1/1 found this helpful
Helpful Positive Review Spring for this product by JJ, Verified Owner, March 16, 2021
JP got it right. Dont be fooled because of the price point. It may not be expensive, but don't look a gift horse in the mouth. I bought 2, for two AR's that had that twang. This buffer spring totally took care of that product. The polished finish is ...
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3/4 found this helpful
Helpful Positive Review This is great... by Brandon, Verified Owner, June 4, 2022
I have owned the JP SCS and I actually prefer this product over it. It's just as quiet and much easier to tune with different buffer weights, I now put this in all of my builds and I have not looked back.
1/1 found this helpful
Read All 35 Reviews
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Product Info for JP Enterprises Tuned And Polished Buffer Spring

Upgrade to JP Enterprises Tuned And Polished Buffer Operating Springs. JP Enterprises uses precision polishing to produce these AR15 Buffer Springs to create consistent outside diameter for more reliable action round after round. High quality construction translates to less recoil and quieter, smoother operation when you install JP Enterprises Tuned And Polished Buffer Springs. Optimize performance on your rifle with JP Enterprises Polished and Tuned Buffer Springs. image

Specifications for JP Enterprises Tuned And Polished Buffer Spring:

Manufacturer: JP Enterprises
Color: Silver
Gun Model: AR-15
Condition: New

Features of JP Enterprises Tuned and Polished Buffer Spring:

  • Precision centerless ground and polished
  • Faster sight recovery and improved reliability

Package Contents:

  • JP Enterprises Custom Centerless Ground and Polished Buffer Spring

JP Enterprises Tuned And Polished Buffer Spring Orderable Models

List of Orderable Models

JP Enterprises Tuned And Polished Extra Power Buffer Spring, Carbine, Silver JPS-OSC , MPN: JPS-OSC , UPC: 812872020921 , Code: J5-BUS-BUDSP-JPS-OSC
JP Enterprises Tuned And Polished Extra Power Buffer Spring, Rifle, Silver JPS-OSR , MPN: JPS-OSR , UPC: 812872020907 , Code: J5-BUS-BUDSP-JPS-OSR
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