My Account

product categories

Site Information

Strike Industries AR Carbine Flat Wire Buffer Spring

  • Flat wire buffer spring
  • Strike Industries AR Carbine Flat Wire Buffer Spring

Strike Industries AR Carbine Flat Wire Buffer Spring

Product Code:
Calculated at checkout
$19.95 $17.95


*Weapon Type:


*Weapon Type:

Find Similar Products by Category



  • Cryo-cycled 17-7 ph steel for strength, reliability and longevity
  • Decreased harmonics lessens system vibration for faster follow up shots
  • Increased bolt load for more positive feeding
  • Reduces distracting AR "twang"


  • Material: Cryo-cycled 17-7 ph steel
  • Outer Diameter: 0.94"
  • Inside Diameter: 0.75"
  • Length: ~13.88"


  • Carbine buffer tubes
  • Pistol buffer tubes


Strike Industries Flat Wire Spring



There are a lot of parts that can be upgraded to improve performance or that might need replacing after you’ve used a rifle for a while. You might tinker with triggers and swap out safety selectors on a fairly regular basis, but how often does your buffer spring really cross your mind? It’s time it did. Strike Industries AR-15 flat wire buffer spring is the drop-in improvement you’ve overlooked for too long.

Flat Wire Buffer Spring by Strike Industries

AR-15 buffer springs tend to be something of a weak link in the weapon system. Over time the OEM springs weaken, and can fail, bringing the service life of your rifle to an abrupt end. Strike Industries’ AR-15 flat wire buffer spring is made from 17-7 steel that has been cryo-treated to last longer and perform more reliably than its predecessors.

The space between spring arcs is larger, and will not compress with use. You’ll enjoy more consistent performance, increased bolt load and much smoother cycle than with OEM springs. The flat wire buffer spring controls harmonics and vibration allowing the shooter to get follow-up shots off more quickly. Not only is AR “bounce” virtually eliminated, but the irritating “twang” so many shooters complain of is a thing of the past when you use this AR-15 buffer spring.

Strike Industries Flat Wire Buffer Spring Offers You More

Whether you’re building a new system or just looking to replace a worn AR-15 buffer spring, the Strike Industries Flat Wire AR Carbine Buffer Spring is the only buffer spring you need to consider for your standard length AR build. Not only does it outperform OEM springs, but it does it without breaking the bank.

Strike Industries AR Carbine FLAT Wire Springs 01:20
  • Strike Industr...
Write Review

  1. Highly recommend 5 Star Review

    Posted by on 13th Oct 2018

    Got this spring for wife's very first MSR (300BLK). Recoil nearly nonexistent. Happy wife, happy life!

  2. really better than a new round spring 5 Star Review

    Posted by on 29th Sep 2018

    Bought a brand new round spring to replace worn spring. Noise was horrible. Ordered the flat spring from Wing Tactical. It was everything they said it was. QUIETER, and fast shipping.

  3. The "sproing" is gone! 5 Star Review

    Posted by on 12th Sep 2018

    Excellent upgrade to the milspec buffer spring. No sproing noise! Very noticeable going from my pistol with the flat wire to a stock M&P15. Super happy with the purchase. They will now go on all of my builds!

  4. Great Upgrade! 5 Star Review

    Posted by on 12th Aug 2018

    It really does perform better than the standard round wire spring. Won't cook breakfast for you, but it does cycle more reliably. And you don't get the "twang" noise of the stock spring. Not that that was ever a deal breaker for me with the old one, but it's just that much nicer.

  5. best product! 5 Star Review

    Posted by on 3rd Aug 2018

    The perfect addition to my lower build! Going to get another one for my 2nd AR!!!

  6. After limited use, I like it. 4 Star Review

    Posted by on 2nd Jul 2018

    I have only used this spring for a few hundred rounds so far so, long term issues such as durability and "set" are not considered at this time. I got this to replace an Armaspec SRS which I was not too satisfied with. In all fairness, I got the "Heavy" Carbine version and would like to try the "Standard" Carbine instead. Unfortunately, the folks at Armaspec don't seem to have their act quite together so I've been unable to get the lighter buffer weight for my spring.
    As far as the Strike Force Flat Spring, there were no feeding or ejecting problems encountered with the rounds fired. It functions smoothly and without the characteristic "twang" of the standard spring, not that I really cared about that. When operating the BCG manually, I could not tell any difference between actuating this spring and the stock spring (unlike the Armaspec which is what REALLY annoyed me about it). I could tell no difference in felt recoil between this spring and the stock spring (again unlike the Armaspec which I do believe actually reduced felt recoil a bit).
    All in all would neither recommend nor not recommend this spring. If you are in the market to replace the spring you currently have, this one is certainly worth consideration.

  7. Quieter, more "pro" feeling spring 5 Star Review

    Posted by on 19th Jun 2018

    As other reviewers noted, this spring immediately makes a difference in the feel of your BCG slamming home, it does so now with authority! I do believe it will make the carbine run more quietly too, especially since I've paired it with the Nickel-Boron coated buffer tube by WMD guns. Running the action with both parts installed was silky smooth. Would buy again.

  8. Another SI winner 5 Star Review

    Posted by on 12th Dec 2017

    These springs are in all three of my AR platforms (16" 556, 12.5" 556, and a 9" 300 blk) and The improved bolt load alone is worth it. It is subtle but you will feel the action smooth out both charging manually and during firing cycle. The benefit of the twang dampening is icing on the cake. $17 at + WT fast reliable shipping and no regrets.

  9. Great Upgrade 5 Star Review

    Posted by on 28th Aug 2017

    This spring has a much more linear feel to it when you cycle the charging handle - not as "bunchy" feeling as a regular spring. It fixed the short-stroking issue I was experiencing on my .223 Wylde-chambered AR when firing some of the weaker .223 ammo. It also has noticeably less "sproing" sound than a standard spring. I think I will eventually upgrade all of my AR's to a Strike Industries flat spring.

    FWIW I've also bought one of the Tubbs flat springs and have to say that I like the Strike Industries spring better. The Tubbs seems stiffer - so that may or may not be what you're looking for.

  10. Spring 1 Star Review

    Posted by on 26th Jun 2017

    All I can say is the A. R. Functioned No different than. A DPMS spring.
    I was trying to tune the rifle with springs and buffers for accuracy and function Groups opened up to inch and a half with this spring so put back the old spring now groups three quarters of a minute
    This is a match rifle
    It did help with the noise during function cycle but that is all the good I can say about it

  11. Quiet 5 Star Review

    Posted by on 15th Jun 2017

    This spring stops your AR-15 from sounding like a "pogo stick" It is also a bit longer and provides a bit more force closing the bcg. I will assume like flat magazine springs it will last longer due to it not retaining a "memory" from constant compression as round springs are said to do. I will also mention I got this at a great price as compared to other competitors.

  12. Great spring, Great deal 5 Star Review

    Posted by on 22nd Apr 2017

    Great price, fast shipping. Awesome spring. Install was a breeze, slid right in. Immediately could feel the difference from a stock spring and it was even better after I shot it. Cycles smoother than ever. Could not be happier with the spring and WingTactical.

  13. Don't know what your missing! 5 Star Review

    Posted by on 17th Feb 2017

    If you don't have one of these springs in your AR, your missing out on about 15% of your performance & pleasure!
    These springs get rid of the "twang" so you can enjoy the bang!

  14. It works 5 Star Review

    Posted by on 2nd Jan 2017

    Installed it on my rifle fired some round worked great. I could definitely tell there was less spring twine. Worth the money.

  15. Very Nice 5 Star Review

    Posted by on 30th Dec 2016

    Easy to install, and shouldn't have to worry about changing it out for a very long time. I haven't fired any rounds since I installed it(Install was beyond easy) but look forward to doing so this weekend. From what I've read, great way to upgrade your rifle's performance on the cheap!

  16. Works Perfect 5 Star Review

    Posted by on 2nd Dec 2016

    Longer than stock spring. Ran 100 rounds through rifle including dumping a full magazine rapid fire. Cycled without issue.

  17. Flat Wire quite 5 Star Review

    Posted by on 2nd Dec 2016

    Any product from SI is great. If you want to quite the common twang out of your weapon cycling get this spring. Works perfectly .

Back to Top