The WLA Magazine Catch Spring is a precision-manufactured replacement part designed for AR10 and AR15 rifle platforms providing reliable magazine retention and smooth operation.WLA Magazine Catch Spring (Model WLA-PAC-1009-10)Compatible with AR10 and AR15 rifle platforms10-pack quantity for multiple replacements or buildsPrecision-manufactured for reliable performanceEssential component for magazine catch assemblyPerfect for gunsmiths rifle builders and firearm enthusiasts who need quality replacement springs to maintain proper magazine function in their AR platform rifles.