Strike Industries - Flat Wire Spring for AR-10 / SR-25 - SI-AR10-FWS

The SI Flatwire Spring is an economical, easy upgrade for any .308 AR system. The flatwire spring increases the 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.

Features:
- improves rifle's operating characteristics
- increases system reliability
- reduced spring wear
- quieter system operation

Technical specifications:
- outer diameter: 0.94 "
- inner diameter: 0.75 "
- length: 19.5 "
- wire cross section: 0.045" x 0.0935"