Strike Industries AR-15 Carbine Flat Wire Buffer Spring

The Strike Industries AR-15 Carbine Flat Wire Buffer Spring is a straightforward upgrade for any AR platform running a carbine buffer tube. If you've built a few rifles or put serious rounds through your current setup, you know the stock spring wears out—and when it does, reliability suffers. This flat wire design is engineered to outlast standard springs while keeping you shooting smoother and more reliably, without breaking the bank on a replacement.

The flat wire profile is the key difference here. Instead of a traditional coiled spring, the wider, flatter design reduces the harmonics that create that characteristic AR "twang" and system vibration. Less noise and vibration means faster, cleaner follow-up shots and a noticeably improved shooting cycle. The increased bolt load also promotes more positive feeding across a wider range of ammunition, which matters whether you're running factory loads or hand-rolled ammo.

Strike Industries subjects every flatwire spring to a cryogenic stress relief process that builds in durability and consistency from the start. You're getting 17-7 PH steel—a premium material that handles high cyclic rates without losing resilience. That means whether you're a competitive shooter running high volume or a hunter who demands reliability, this spring will handle it. At a price point only marginally higher than a stock replacement, the flat wire spring is the smart choice for anyone replacing a worn spring or starting a new carbine build.

Key Features

• Flat wire design reduces system vibration and AR "twang" for improved shooting dynamics
• Increased bolt load for more positive ammunition feeding and reliability
• Cryogenically stress-relieved 17-7 PH steel construction for extended service life
• Outlasts stock carbine buffer springs across high cyclic rates
• Easy direct replacement for any AR-15 with carbine buffer tube

Specifications

Frequently Asked Questions

Will this flat wire spring work with my AR-15 carbine buffer tube?

Yes. This spring is designed as a direct replacement for any AR-15 platform using a carbine-length buffer system. It installs the same way as a standard carbine spring.

What's the difference between this and a stock buffer spring?

The flat wire design reduces system vibration and the characteristic AR "twang," smooths out your shooting cycle, and lasts significantly longer. The increased bolt load also improves feeding reliability. All Strike Industries flatwire springs are cryogenically stress relieved for greater consistency and resilience under sustained fire.

Is this spring suitable for high-volume shooting or competition?

Yes. The cryogenic stress relief and 17-7 PH steel construction are engineered to handle high cyclic rates without losing resilience, making it a solid choice for competitive shooters and anyone running high volume through their rifle.

What comes in the package?

One carbine-length flat wire buffer spring. This is the spring only—not a complete buffer kit.