--- title: "Strike Industries AR Carbine Flat Wire Spring" description: "Cryo-cycled 17-7 PH steel flat-wire spring for AR carbine buffer systems. Measures 13 7/8\" long with a 0.94\" outer diameter." canonical_url: "https://www.kygunco.com/product/strike-industries-ar-carbine-flat-wire-spring" meta: author: KYGUNCO "og:description": "Cryo-cycled 17-7 PH steel flat-wire spring for AR carbine buffer systems. Measures 13 7/8\" long with a 0.94\" outer diameter." "og:image": "https://cdn.kygunco.com/assets/products/289757/thumbnail.jpg?v=1750959414" "og:image:height": "500" "og:image:width": "500" "og:title": "Strike Industries AR Carbine Flat Wire Spring" --- > Index of every page on this site: [llms.txt](https://www.kygunco.com/llms.txt) [Home](https://www.kygunco.com/) / [Shooting](https://www.kygunco.com/category/shooting) / [Gun Parts](https://www.kygunco.com/category/shooting/gun-parts) / [Handgun & Rifle Parts](https://www.kygunco.com/category/shooting/gun-parts/handgun-and-rifle-parts) / [Rifle Parts](https://www.kygunco.com/category/shooting/gun-parts/handgun-and-rifle-parts/rifle-parts) / [Upper Receiver Parts](https://www.kygunco.com/category/shooting/gun-parts/handgun-and-rifle-parts/rifle-parts/upper-receiver-parts) / STR-SI-AR-FWS-C ![Main product image](https://static.kygunco.com/cdn-cgi/image/f=auto,w=600/assets/products/289757/main.jpg?v=1750959414) For illustration purposes only, this image may not be an exact representation of the product. # STRIKE INDUSTRIES AR Carbine Flat Wire Spring The Strike Industries AR Carbine Flat Wire Spring is a cryo-cycled 17-7 PH steel buffer spring for AR platforms with carbine buffer systems. Its flat-wire design reduces harmonics and buffer spring twang while providing increased bolt load and consistent cycling. It measures 13 7/8" long with a 0.94" outer diameter and 0.75" inner diameter. $21.95 ** 4 interest-free payments of **$5.49** with ![Sezzle logo](https://www.kygunco.com/brands/sezzle.svg) ** Online In Store ** Flat Rate $13.94 for every 25 lbs. Shipping to HI & AK may incur additional fees. ** Ships To Your Home Fulfilled by a partner warehouse. ** Partner Fulfilled Item # 289757 Style STR-SI-AR-FWS-C UPC 708747545555 Condition New Manufacturer [Strike Industries](https://www.kygunco.com/brand/strike-industries) Weight 1 lb **Strike Industries Carbine Flatwire Buffer Spring** Upgrade any AR with a carbine buffer system using this cryo-cycled flatwire spring. It smooths the recoil cycle, reduces the classic buffer “twang,” increases bolt load, and delivers long service life with consistent performance at high cyclic rates. **Package Includes** - 1× Carbine Length Flatwire Spring **Features** - Cryo-cycled 17-7 PH steel for strength, reliability, and longevity - Reduced harmonics for less vibration and faster follow-up shots - Increased bolt load for more positive feeding and reliable cycling - Mitigates distracting AR buffer spring “twang” **Specifications** - Outer Diameter (OD): 0.94" - Inner Diameter (ID): 0.75" - Length: 13 7/8" - Rev: 35 - Gauge (flat wire profile): 0.045" × 0.0935" ** WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to [www.p65warnings.ca.gov](https://www.p65warnings.ca.gov). 0.0 ** ** ** ** ** 0 reviews ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ## More from Strike Industries ```json {"@context":"https://schema.org","@graph":[{"@id":"https://www.kygunco.com/#website","@type":"WebSite","description":"Shop KYGUNCO for firearms, ammo, accessories, parts, and outdoor gear at low prices with fast, easy nationwide shipping.","name":"KYGUNCO","url":"https://www.kygunco.com/","publisher":{"@id":"https://www.kygunco.com/#/schema/organization/kygunco"}},{"@id":"https://www.kygunco.com/product/strike-industries-ar-carbine-flat-wire-spring#webpage","@type":"WebPage","description":"Cryo-cycled 17-7 PH steel flat-wire spring for AR carbine buffer systems. 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