Yankee Hill Machine MR7 M-LOK Free Float Handguard, 7.29 in., Black The Yankee Hill Machine MR7 is one of the lightest YHM handguards, with M-LOK slots along its whole length at every 45 degree position and a T-marked Picatinny top rail. This 7.29 in. model has a 1.75 in. inside diameter and weighs 9.7 oz. It is 6061-T6 aluminum with hard coat anodizing, and the front and rear holes accept the YHM Q.D. sling mount. Barrel nut, jam nut and anti-rotation screws are included. Key Features M-LOK at every 45 degrees. T-marked top rail. Free float. Q.D. sling mount holes. Barrel nut included. Specifications Manufacturer Yankee Hill Machine Model MR7 M-LOK Handguard, 7.29 in. Part Number YHM-5330 UPC 816701019759 Length 7.29 in. Inside diameter 1.75 in. Weight 9.7 oz Interface M-LOK Material 6061-T6 aluminum Finish Hard coat anodized Includes Barrel nut, jam nut, anti-rotation screws FAQs Is the barrel nut included? Yes, with jam nut and screws. How long is it? 7.29 in. Does it take Q.D. sling swivels? Yes, at the front and rear holes. Compare more handguards, rails and bases at BattleHawk Armory.