JP Tuned & Polished Buffer Spring - AR-10 Rifle

Upgrade Your AR-10 Rifle with the JP Tuned & Polished Buffer Spring

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On sale: ~~$24.95~~ $23.70

JP Tuned & Polished Buffer Spring - AR-10 Rifle

Part Number: JPS-OSR-308

Availability: In Stock.

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Smooth Operation: Center-less ground and polished to a mirror finish on the outside edge for silent, smooth operation.
Quieter Performance: Reduces spring noise significantly, ideal for those using suppressors or who prefer less noise from their firearm.
Maximum Spring Force: Helps decelerate the heavy 9mm bolt, holding it in battery, minimizing recoil, and reducing wear on trigger parts.
Extended Service Life: Offers an expected service life of 10,000 rounds.

Description
Customer Reviews
Compatibility
FAQ

JP Ground & Polished Buffer Spring - AR-10 Rifle

Recommended for 9mm AR with 14.5 - 16" barrel

JP Enterprises Extra Power Buffer Springs are center-less ground and polished to a mirror finish on the outside edge for silent, smooth operation. These springs run very smoothly and much more quietly than standard buffer springs. Great for those tired of the raspy sound of AR buffer springs and for those using suppressors. These combined with our 9mm Hydraulic Buffer reduce spring noise significantly.

For 9mm ARs these AR-10 rifle springs are recommended for 14.5 - 16" barrels if using our 9mm Hydraulic Buffer. They give the most spring force possible and this helps to decelerate the heavy 9mm bolt before it impacts at the rear of it's recoil stroke. This helps in holding bolt in battery, keeping recoil to an absolute minimum and reducing wear on trigger parts. This spring is too long for our Aktive buffer or any typical AR carbine buffer. They also work great in any .308 AR-10 with a fixed stock. Expected service life is 10,000-20,000 rounds.

Features:

Centerless Ground and Polished Outside Edge
Smooth, Silent Operation
Perfect for use with Suppressors

What Buffer Spring is best for my build?
- For PCC builds, we recommend using the strongest buffer spring that cycles reliably and consistently in your build. If it has a bolt catch in use, we recommend ensuring that the spring allows for reliable function of the bolt catch on an empty magazine. If the bolt doesn’t lock back on the last round, it is often due to too strong of a buffer spring for your gun and going down a step on spring power usually solves this problem. In PCC builds, there is often some trial and error on buffer spring selection. Every gun cycles somewhat uniquely even with the same build specs. So, there are typical combinations that work well, but you have to see for yourself what works best in your gun with your ammo.
- For 9mm PCC builds, use an AR10/.308 carbine buffer spring for barrels that are 8” or longer. For shorter barrels, more trial and error is often needed, but some type of .223 carbine spring is normally appropriate. Extra power .223 springs are normally best in all but the softest running systems.
- For AR15 or AR10 rifle buffer tubes, always use the AR15 rifle buffer and AR15 rifle buffer spring or AR10 rifle buffer and AR10 rifle buffer spring.
- For AR10 carbines with either the AR15 or AR10/A5 buffer tube, always use an AR10/.308 carbine buffer spring.
- For AR15 carbines the buffer spring selection is broader and will depend on the specifics of the build.
What is the difference between Sprinco Springs and JP Springs:
- Sprinco Springs use very high quality, certified Chrome Silicon Wire that is cryogenically heat treated, shot peened and moly plated. This gives these springs a very long service life. Running these springs for 10s of thousands of rounds is common. But you do get the typical AR spring twang with these.
- JP Springs use standard music wire, which is a very good spring material but it doesn’t have as long of a service life and is rated at between 5,000 and 10,000 rounds depending on the gun. But the advantage is that they are ground flat on the outer edge which makes them run much smoother and quieter in the buffer tube, so you don’t get the annoying spring noise. This is especially noticeable in suppressed guns. So one spring is for max service life and the other is for smoothest running with the least spring noise.
Does an AR-15 rifle buffer spring work for an ar-10?
- Buffer springs for AR-15 and AR-10 platforms are not interchangeable due to differences in size, strength, and cycling requirements.
- The AR-15 platform is primarily chambered in smaller calibers like .223 Remington/5.56 NATO, while the AR-10 platform is designed for larger calibers like .308 Winchester/7.62 NATO. The buffer springs for each platform are specifically engineered to handle the unique cycling characteristics and pressures of their respective calibers.
- Using an AR-15 buffer spring in an AR-10 could lead to cycling issues, reliability problems, and potential damage to your firearm. It is essential to use the correct buffer spring designed for your specific platform and caliber to ensure optimal performance and safety.
How long will an AR-15 buffer spring last?
- Sprinco USA Springs - These buffer springs are made from certified Chrome Silicon wire stock, precision wound, heat-treated, stress relieved, shot peened, and moly plated for improved corrosion and wear resistance. The expected service life for these springs is in excess of 30,000 rounds.
- JP Enterprises Extra Power Buffer Springs - These buffer springs are center-less ground and polished for silent and smooth operation. They are designed to run smoothly and more quietly than standard buffer springs. The expected service life for these springs is between 10,000 and 20,000 rounds.
How do I change the buffer spring on an ar-15?

Changing the buffer spring on an AR-15 is a relatively simple process. Follow these steps to replace the buffer spring:
1. Ensure the firearm is unloaded: Double-check that the AR-15 is unloaded, and there is no round in the chamber. Remove the magazine if one is present.
2. Separate the upper and lower receivers: Push the rear takedown pin and the front pivot pin on the lower receiver to detach the upper receiver from the lower receiver. Pull the pins out from one side and open the rifle. You may completely separate the upper and lower by pulling the pins out entirely.
3. Remove the buffer and buffer spring: Locate the buffer tube, which houses the buffer and buffer spring. Press down on the buffer retainer (a small pin) located near the front end of the buffer tube. This will release the buffer and buffer spring. Slowly and carefully pull the buffer and spring out of the buffer tube. Be cautious, as the buffer retainer is under spring tension and can fly out if not controlled.
4. Replace the buffer spring: Slide the old buffer spring off the buffer, and slide the new buffer spring onto the buffer. Ensure the spring is seated correctly on the buffer.
5. Reinstall the buffer and buffer spring: Push down on the buffer retainer again and slide the buffer and new buffer spring back into the buffer tube. Release the buffer retainer so it locks the buffer and spring in place.
6. Reassemble the rifle: Reattach the upper and lower receivers by aligning the pivot pinholes and takedown pinholes, and then push the pins back in to secure the two halves.
7. Function check: Perform a function check by working the charging handle, dry firing, and checking the safety selector to ensure everything is working correctly. If everything seems to be functioning properly, your buffer spring replacement is complete.

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Upgrade Your AR-10 Rifle with the JP Tuned & Polished Buffer Spring

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