JP Enterprises Tuned and Polished Buffer Spring - Rifle

Manufactured by JP Enterprises
Manufactured by JP Enterprises
12 Reviews

In Stock

Orders of non-FFL items will ship same day if ordered before 3:30pm CST (M-F). FFL orders will ship within 5 business days if transfer details are provided.

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The Custom Centerless Ground and Polished Operating Spring is a precision operating spring offering smoother and quieter operation in AR buffer tubes. Provides an improved impulse feel resulting in faster sight recovery and improved reliability. This JP Buffer Spring is an inexpensive way to see exactly why JP has a reputation for having the quietest, smoothest rifles on the market.

  • Platform: small-frame AR
  • Length: rifle length

Equipment should not be a limiting factor. Whether a professional or a first-time shooter, move up to the best. JP Enterprises creates innovative new ideas that fill the needs of serious and recreational shooters. Their policy is simple: if you are not happy, they are not happy.
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BrandJP Enterprises
MaterialSteel - A401 Chrome Silicon Wirestock
TypeAction Spring - Rifle Length
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

12 reviews


poor customer service


As the subject state very poor customer service. . Employees didn't even try to help me when i didn't receive my item i ordered and lied to me when i called saying my order was shipped on 1-30-2015.. it wasn't shipped till 2-9-2015 according to the tracking number... will not be shopping with primary arms again and will definitely inform my friends of the situation i went through and to do the same.

Like Buttah!!!


I hated that "cheese grater" sound during Basic Training. Fast forward 40 years and this fixed it. I previously installed one in my MP-15 Carbine last year and loved it. This year I built a 24" bull barrel fixed stock long distance shooter. I highly recommend one of these and a Spike's Tungsten buffer. Thanks PA!

great customer service


I ordered the wrong buffer spring due to lack of information in the product description but primary arms did a great job at a quick response to my email and sent me a free return shipping label and return credit.

What a Difference!


My AR-15 rifles were not cycling Russian ammunition reliably that I use for training. Tulammo was the main culprit with FTF and , or FTE every other round! Without doing any other modifications other than changing out the buffer springs, all rifles cycle with zero FTF & FTE. I put 300 plus rounds of Tulammo, Silver Bear, and Brown Bear (55 grain and 62 grain), in each rifle using using Magpul 2nd gen & 3rd gen mags, and Troy battle mags with zero FTF or FTE. What a difference! If your AR rifle is having digestion problems like mine were using Russian ammo, maybe a new buffer spring would help your rifle too? And an added bonus was that felt recoil and sound is perceptively better.

JP buffer spring


Quality product. Works as described. This is is my second JP buffer spring.

Nice Addition


Quick shipping, product as listed!

So far so good


Seems to work as smooth as they say. Good quality stuff here. time will tell us more.

Top Quality, Great Service


The JP Buffer Spring is just what I was looking for. Primary Arms delivers each and every time. I trust them to have what I'm looking for and the service and delivery is the best..

A2 buffer spring


Well made spring works flawlessly in my new 20" build and produces less "sproing" noise upon firing than a regular A2 spring.

Rifle runs reliably


Spring runs smoothly. Haven't had any malfunctions with a brand new build.