JP Enterprises Custom Buffer Spring - Centerless Ground and Polished - Carbine

Manufactured by JP Enterprises
Manufactured by JP Enterprises
48 Reviews

In Stock

NOTE: Limit 2 per household. Quantities exceeding 2 will not allow checkout.

We are fully staffed and processing orders. Standard orders are shipping in approximately 1 business days or less. FFL orders take approximately 20 business days or less if you can provide us an actively receiving FFL location.



The JP Enterprises Custom Centerless Ground and Polished Buffer Spring is a precision operating spring offering smoother and quieter operation in AR-15 carbine buffer tubes. Provides an improved impulse feel resulting in faster sight recovery and improved reliability. These Custom Recoil Springs are an inexpensive way to see exactly why JP has a reputation for having the quietest, smoothest rifles on the market.

  • Platform: small-frame AR-15
  • Length: carbine length
  • Custom tuned to increase reliability with 5.56 NATO and .223 Remington ammuntion
  • Centerless ground - Eliminates the "twang" noise of Mil-Spec buffer springs
  • Heavy spring weight to reduce felt recoil
  • Made from chrome silicon wirestock

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 - Carbine Length

WARNING: This Product can expose you to chemicals which is known to state of California to cause Cancer and Reproductive Harm. For more information, see

Ratings & Reviews

48 reviews


Save money, get this instead of silent captured.


Save yourself $100 by getting this polished spring instead of the silent captured spring and put the money into a hydraulic buffer or a nice muzzle device.

very nice


You can tell just by looking at this spring it is better than your run of the mill buffer spring. It's quiet, and I feel like it should last awhile. I'm running mine with a 3 oz. buffer and low friction BCG..

Great product!


Did just what it said.. along with the Daniel Defense buffer was a great combo!!

Buffer spring


Excellent quality, fast shipping, great customer service

Quality part, great service!


Extremely happy with the quality and price of this spring, would highly recommend to anyone doing a custom build.Delighted with the price and excellent service I always receive from PA.

great product


fast shipping definitely quieted the noise from each shot.



For something so simple it seems to make a significant difference in the feel of my rifles action. Maybe it is all in my head but it does feel nice.

This is a buffer spring


Got my spring today; four days after ordering. Can,t beat Primary Arms for service. I went right out to the range to try it out. Performed 100% as described;quieter with smother recoil.

Awesome upgrade


I bought this buffer spring after reading a lot of reviews. Perfect upgrade, quality manufacture. Easy install with no modifications. I lightly coated it with CLP. SO much quieter than than the stock spring in my S&W M&P 15. Great price and fast shipping as usual.



I use these on every AR I own. Quieter stronger longer life span and just a satisfying finish and quality.

JP Tuned buffer spring.


I used this JP tuned and polished buffer spring with a standard Anderson Manufacturing 3oz carbine buffer, in a WND nickel boron buffer tube and DD butt stock. The AR shot great and cycled without any flaws. I would use it again.



I wanted an extra power spring amongst other things for greater reliability. I originally wanted the Springco blue spring, but Primary Arms doesn't carry Springco springs so I got this as a compromise - I wanted to order all of my parts from one place to save on shipping, and PA had everything I wanted to order at the best prices. I'm glad I got this one! It runs much quieter than a normal buffer spring.NOTE: Compared to Springco springs, the strength of this one falls in between the blue and red springs.



Just as described. Worked great for my build and fast shipping.

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 Chrome Silicone Spring


my custom AR build cycles like butter. I don't know if it's the spring or if it's all in my head. Anyways, I don't think I'll ever be disappointed. It's nice to know I have peace of mind due to the extra investment in this spring!

It's worth the extra couple bucks


Solid - you can notice the difference

jp spring


Spring does as advertised, added this and a H buffer to my rifle because of an over gassing issue and it solved the problem. This spring is of higher quality and strength than the spring that came with my rifle. Also helps with that annoying noise.

I am happy with my purchase.


The JP buffer spring is a great upgrade for your rifle. It comes with instructions and additional information about the spring. I purchased one of these when I swapped the full size A2 stock for a collapsible one. I highly recommend this product to anyone who enjoys shooting the AR-15. My order shipped the next day.



The one I got was not silent. Though significantly quieter than a stock spring. What was really interesting was its effect on recoil impulse. My 6.5 Grendel now has significantly reduced recoil and it didn't exactly kick like a mule to begin with. With an oddly different impulse, it feels like a two stage kick if that can be imagined.



This spring is nice and quiet and helps reduce felt recoil. I highly recommend it as it preformed as discribed. I have all JP Enterprises springs in my AR and it makes a huge difference.Shipping is also extremely fast, Primary Arms has a customer for life.

Superior quality at a great price!


This spring is so quiet. I have a 7.62x39 and it really helps with the increased recoil and functioning of my AR platform. Would highly recommend it.



Very good spring! Will use these on all future builds.

JP Tuned and Polished


Very high quality make if you willing to pay an extra.

AR Tune up


Very smooth and quite, love it!

better than stock


Very solid lockup no twang just what I was looking for