STRIKE INDUSTRIES AR-10 Flat Wire Spring (.308 caliber)

STRIKE INDUSTRIES AR-10 Flat Wire Spring (.308 caliber) - Package Contents - 1x Flatwire Spring for AR10/SR25/LR308 - Features - Cryo-cycled chrome-silicon steel for strength, reliability, and longevity - Improved bolt load with decreased compressing force for more reliable cycling - Reduced harmonics to lessen vibration and speed follow-up shots - Eliminates typical AR buffer spring twang - Compatible with all standard AR10/SR25 receiver lengths - Specifications - Outer Diameter (OD): 0.94" - Inner Diameter (ID): 0.75" - Length: 19.5" - Rev: 42 - Gauge (flat wire profile): 0.045" × 0.0935" - Weight: 2 oz (net); 3 oz (gross) - Compatibility: AR-10 / LR-308 / SR-25 receiver extensions