Midwest Industries, Handguard, M-LOK, Aluminum, Fits FN SCAR, Includes 5-Slot Rail Section, Black Anodized Finish Adds M-LOK Slots to front of FN SCAR The Midwest Industries SCAR SOCOM Handguard-is M-LOK accessory compatible and constructed from 6061 aluminum with a hard coat anodized finish for a lifetime of service. The extremely rigid and rugged lightweight design only adds 4oz of additional weight to the rifle and provides an additional 4.75" inches of usable rail space to the rifle. Midwest Industries is a proven leader in the firearm industry. Made in America, focusing on the small details to make your rifle platform better.