Your Cart

No products in the cart.

Flat Rate Shipping Available

The SI Flatwire Spring is an economical, and easy upgrade to any .308 AR system.  The flatwire spring increases service life of the platform, smooths out the shooting cycle, and greatly outlasts the stock spring.  Increased bolt load, in addition to decreased compressing force increases reliability in cycling.  Additionally, all SI Flatwire springs are cryogenically cycled to provide greater consistency, longer spring life, and greater resilience to high cyclic rates.  At a cost not much greater than stock carbine springs, the SI Flatwire is an easy option for those either looking to replace worn buffer springs or begin new builds.  

Product Specifications
– OD: 0.94”
– ID: 0.75”
– Length: 19.5”
– Rev: 42
– Gauge (flat wire profile): 0.045” x 0.0935”
– Weight: 3oz gross,2oz net

– Cryo-cycled chrome-silicon steel for strength, reliability and longevity
– Decreased harmonics lessens system vibration for faster follow up shots.
– No more AR “twang”
– Compatible with all standard AR10/SR25 receiver extension lengths

Package include:
– 1x Flatwire Spring for AR10/SR25/LR308







Strike Industries


There are no reviews yet.

Be the first to review “Strike Industries AR 10 Flat Wire Spring (.308 caliber)”

Your email address will not be published. Required fields are marked *


Know all your state laws before purchase is made.

Strike Industries AR 10 Flat Wire Spring (.308 caliber)

Our Price:

Strike Industries AR 10 Flat Wire Spring (.308 caliber) $24.95
  • MSRP$24.95
  • UPC708747545791

Total in stock: 0

Available on backorder

Pick up in store

5004 State Highway 74 Cape Girardeau, MO 63701
In stock Get directions

Flat Rate Shipping Available

Easy, hassle-free returns Ask an expert-Chat Now SSL-secure checkout
Fast Shipping
Easy returns
Chat & Phone Support
SSL-Secured Checkout

JSE Surplus, LLC.

All Rights Reserved © 2023

Visa Mastercard American Express Discover