Forward Controls Design - Reinforced Buffer Retainer - For AR Systems - RBF

The Forward Controls Design Reinforced Buffer Retainer (RBF) is FCD's upgraded replacement for the factory AR-15 buffer retainer. The standard mil-spec buffer retainer is a known weak point in the AR-15 lower receiver — over time, repeated cycling and impact can cause the factory retainer to break or deform, allowing the buffer to exit the receiver during firing. FCD's RBF (Reinforced Buffer, Forward Controls) is machined from stronger material with improved geometry to resist breakage and maintain positive buffer retention under high-round-count use. A direct drop-in replacement requiring no receiver modification — just replace the factory retainer with the RBF.

• Part Number: RBF
• Compatible Platforms: AR-15 / M16 pattern lower receivers (standard buffer tube thread)
• Function: Replacement buffer retainer — prevents buffer from exiting receiver during firing
• Material: Steel, improved geometry over mil-spec
• Installation: Drop-in replacement for standard AR-15 buffer retainer
• Country of Origin: Made in the USA
• Manufacturer: Forward Controls Design (FCD)

A critical reliability upgrade for high-round-count duty or competition AR-15 builds. Sold individually.