The Wilson Combat Flat Wire Recoil Spring Kit is specifically engineered for 1911 Commander pistols featuring advanced flat wire spring technology for enhanced performance and reliability.Wilson Combat Flat Wire Recoil Spring KitDesigned specifically for 1911 Commander pistolsFlat wire construction for improved spring characteristicsEnhanced reliability and consistent cyclingPremium Wilson Combat quality and engineeringThis recoil spring kit provides superior performance for 1911 Commander owners seeking to upgrade their pistol's reliability and function with Wilson Combat's renowned precision engineering.