The Stern Defense 15 Handguard is a high-performance AR-15 accessory CNC-machined from aircraft-grade aluminum with a durable black anodized finish. Designed for stability and ergonomics, it features a secure clamp-on mounting system that remains rigid even under heavy use or when shooting from a bipod. This 15 free-float rail provides a slim profile with an internal diameter of 1.435 and includes an M-LOK compatible modular interface for accessory attachment. Integrated QD swivel holes allow for easy sling mounting, making it a versatile choice for tactical or competition builds. Note: This handguard kit typically ships with the necessary barrel nut, shims, and mounting bolts required for a complete and secure installation on a standard AR-15 upper receiver.