This handguard is designed to fit the Sig Sauer MCX Virtus. Made from 6061 aluminum, with a hard coat anodized finish, this rail is sure to stand up to any type of shooter. It features 46 M-LOK compatible slots, making it easy to attach your favorite accessories. Feature: Advanced ergonomic shape improves the feel and handling of your MCX Virtus Easy no gunsmith installation Features 46 full M-Lok compatible slots for maximum versatility 1.67 inches w x 2.6 inches h, 2.4 inches lrip height Lightweight, rugged construction of 6061 aluminum, hard coat anodized for a lifetime of service Heat treated 4140 retaining clip with phosphate finish 100% made in the USA MI lifetime warranty