Troy Modular Rail Free Floating Forend (Carbine Length) – This Troy Modular Rail Forend provides an uninterrupted rail extension and hand guard in perfect alignment with the host weapons flat top receiver. The patented locking system reinforces the factory installed barrel with a robust clamp and four anti-rotation alignment lugs. This Troy Modular Rail Forend is the strongest user installed free floating rail system in the world today. It’s constructed from hardened aircraft aluminum and finished in MIL-STD-Type III Hard Coat Anodize Black.