Description
The RIS III 13″ FSP Assembly in FDE is a premium modular rail system engineered for operators and rifle enthusiasts seeking enhanced customization capabilities. This tactical forend integrates seamlessly with standard AR-platform rifles, delivering the modularity and durability expected from professional-grade components.
Key Specifications
The RIS III 13-inch assembly features full-length Picatinny rail integration along the top surface, complemented by integrated KeyMod or M-LOK slots for versatile accessory mounting. The Flat Dark Earth finish provides a modern aesthetic while offering superior corrosion resistance compared to standard anodizing. Constructed from aircraft-grade aluminum, this assembly weighs approximately 13 ounces, maintaining a lightweight profile without sacrificing structural integrity. The FSP (Front Sight Post) compatibility ensures seamless integration with standard military-spec front sight installations, making this an ideal upgrade for existing rifle platforms.
Performance & Ballistics
While the RIS III 13″ assembly itself is a non-firearm component, its rigid construction directly impacts rifle accuracy and stability. The precision-machined aluminum body maintains zero shift under recoil, critical for maintaining ballistic consistency across extended shooting sessions. Enhanced weapon stability from this rail system translates to improved shot grouping and reduced sight picture disruption when mounting optics and tactical accessories. The modular design allows shooters to balance their rifle configuration for their specific shooting discipline, whether precision rifle work or dynamic tactical operations.
Intended Use
The RIS III 13-inch forend assembly serves military, law enforcement, and civilian tactical shooters. This component excels in precision rifle builds, tactical training environments, and competitive shooting applications. The extended rail length provides ample real estate for mounting bipods, forward grips, lights, and laser systems without requiring adapter plates. Operators appreciate the FDE finish for its versatility across multiple environment contexts, from desert operations to modern tactical ranges.
Why Choose CaliperDepot
CaliperDepot.com stocks authentic RIS III assemblies from authorized distributors like Lipseys, ensuring genuine products backed by manufacturer warranties. Our competitive pricing on the RIS III 13″ assembly reflects our commitment to serving serious shooters and military professionals. With detailed product specifications and fast shipping on all orders, CaliperDepot remains your trusted source for premium tactical components. Our knowledgeable team understands the importance of quality components in rifle platforms and stands ready to answer technical questions about compatibility and installation specifications.
Upgrade your AR-platform rifle with the RIS III 13″ FSP Assembly in FDE. Order today from CaliperDepot.com and experience the difference that premium modular rail systems bring to tactical accuracy and customization.






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