Strike Industries AR Carbine Flat Wire Spring SI-AR-FWS-C

The SI Carbine Flatwire Spring is an economical, easy upgrade to any ar system with a carbine buffer 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.

FEATURES:

• 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"

Includes:

• OD: 0.94"
• ID: 0.75"
• Length: 13 7/8"
• Rev: 35
• Gauge (Flat Wire Profile): 0.045" x 0.0935"