Brownells AR-15 Buffer Retainer Spring Features The Brownells AR-15 Buffer Retainer Spring 3-Pack is manufactured to precise tolerances with materials and finish at least equal to OEM specification so each spring functions exactly as the factory-original part did. These high quality springs help keep the buffer retainer seated properly which is essential to reliable buffer and bolt carrier group cycling. A weak or broken retainer spring can allow the buffer to work loose during firing causing malfunctions so keeping fresh springs on hand prevents unexpected downtime. Packaging three springs together makes this an efficient way to stock spares rather than purchasing them one at a time. This three pack is built for any standard AR-15 platform rifle and drops in as a direct replacement for a worn or lost original spring. It is a great option for emergency spares kept in a range bag or for assembling a parts rifle from individual components. Because the springs meet OEM-equivalent standards shooters can rely on consistent performance across every install. The Brownells AR-15 Buffer Retainer Spring 3-Pack keeps your AR-15 running reliably without the hassle of ordering single replacements repeatedly. Brownells AR-15 Buffer Retainer Spring Specifications Manufacturer: Brownells Model: AR-15 Buffer Retainer Spring Compatible Hosts: AR-15 Quantity: 3 Available At: GrabAGun