This Buffer Retainer Spring for AR15 and AR10/LR308 firearms is manufactured in the U.S.A. by Black Dirt Rifleworks and is designed to meet and exceed demanding U.S. military specifications. Whether you're working on a new build, replacing a lost/worn out part or rounding out your spare parts kit Black Dirt Rifleworks Buffer Retainer Springs are the perfect choice.
- Material: Steel
- Design: U.S. Mil-Spec
- Origin: United States of America