The Wilson Combat R16C Mainspring Pin Retainer is a precision-engineered replacement part designed specifically for 1911 Government pistols. This Factory Plus component delivers enhanced reliability and performance over standard factory parts.Wilson Combat R16C Mainspring Pin RetainerDesigned for 1911 Government pistolsFactory Plus enhanced performance specificationPrecision machined Wilson Combat qualityUPC: 874218003036Ideal for gunsmiths competitive shooters and 1911 enthusiasts seeking to upgrade their pistol's internal components with Wilson Combat's renowned precision and reliability.