The AR-15 CQB Standard Buffer & Spring Kit provides reliable replacement components designed specifically for Close Quarters Battle (CQB) stock configurations on AR-15 rifles.AR-15 CQB Standard Buffer & Spring KitDesigned for CQB stock applicationsStandard buffer weight and spring tensionDirect replacement for worn or damaged componentsCompatible with AR-15 platform riflesEssential for maintaining proper rifle function and cycling reliability this kit ensures optimal performance in CQB stock setups and standard AR-15 configurations.