Strike Industries AR Carbine Flat Wire Buffer Spring

Strike Industries AR Carbine Flat Wire Buffer Spring

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Calculated at Checkout
$19.95 $17.95



  • 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.

Write a Review

30 Reviews

  • Spring

    Posted by Richard Derrick on 6th Jan 2020

    Well built but haven't tried yet.

  • Strike Ind's Flat Wire Buffer Spring

    Posted by Larry DeClue on 2nd Jan 2020

    This is the 4th SI flat wire buffer spring I've bought/used. I have 3 in 458 SOCOM rifles and a pistol, and one 7.62 x 39 Russki AR upper. This SI flat wire spring gives a very smooth recoil action & is way more quite than a regular buffer spring.

  • Thumbs Up

    Posted by Steve C on 18th May 2019

    I have limited range time with this spring, but compared to my previous round buffer spring I have to say it is an improvement. My rifle still cycles as it should, but I haven't noticed any amazing improvements. I need to give it more time to fully appreciate or condemn it.

  • Does not allow carbine length to fully cycle

    Posted by Victor Quijano jr on 2nd Mar 2019

    Does not allow carbine length to fully cycle

  • Highly recommend

    Posted by Andy on 13th Oct 2018

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

  • really better than a new round spring

    Posted by john 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.

  • The "sproing" is gone!

    Posted by Jono 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!

  • Great Upgrade!

    Posted by Unknown 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.

  • best product!

    Posted by Brian Jamieson on 3rd Aug 2018

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

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