The Midwest Industries 6.75″ CZ Scorpion M-LOK Handguard features two anti-rotation QD sling swivel sockets, M-LOK accessory mounting slots along its length and a full length Picatinny top rail. Constructed of 6061 aluminum with a hard coat anodized finish, the rail weighs in at a scant 10.9 ounces and features an internal diameter of 1.625″. Installation is simple, requiring a single allen wrench (included). Midwest Industries is a proven leader in the firearm industry. Made in the USA, focusing on the small details to make your rifle platform better.