Sprinco Usa 1911 Auto Progressive Recoil Spring
Moly Treatment & Chrome Silicon Steel Provide Consistent Performance
Varied, progressive structure provides constant pressure with greatly increased spring performance and life. Wound from high endurance chrome silicon wire for maximum performance with an extended cycling range of 50,000 cycles. Mfg: Sprinco Usa SPECS: Chrome Silicon wire. Fits 1911 Auto's.