Fab Defense FXDPRB Double Picatinny Rail for M16 M4 AR15 Matte Finish

The F.A.B. Defense FXDPRB Double Picatinny Rail for M16/M4/AR15 standard handguards in matte black offers a rugged, lightweight solution for expanding accessory mounting options on modern rifles. Constructed from fiberglass reinforced polymer, this double rail system delivers durable, repeatable alignment without adding excessive weight, enabling shooters to secure multiple optics, lights, grips, and other accessories in a stable, modular layout. Its precise, low-profile design fits alongside standard handguards, preserving rail space and maintaining a clean, functional profile for field use, training, or competition. With smooth edges and reliable heat resistance, the FXDPRB rail reduces snag hazards while providing ample rail real estate for tactical versatility. Whether configuring a dedicated hunting setup, a precision-oriented build, or a general-purpose patrol rifle, this rail system supports rapid accessory swaps and secure mounting across a variety of AR platforms. The matte black finish blends with most finishes and camouflage patterns, ensuring a professional look that resists glare. For shooters looking to optimize weapon ergonomics and accessory integration, the FXDPRB doubles the attachment potential of standard handguards, enabling a customized, repeatable setup tailored to individual mission or sport-specific needs.