Odin Works 92 Lite M-LOK 12.5in Free Float Forend - Black - The O2 Lite is the latest and lightest of all the ODIN Works forends. Precision machined from 6005-T651, the O2 lite is a full 20% lighter than its predecessors. All ODIN Works forends are free floating for accuracy and hard anodized for durability. Engineered with advanced ergonomics for comfort and improved performance. Accessory rails can be placed at 3, 6, and 9 o'clock positions and can be joined to create continuous Pic Spec Rail. Four or more QD attachment points. Weight (Without Hardware): 5.6Oz Hardware Weight: 2.7oz Made From 6005-T651 Aluminum Inside Diameter: 1.6in Outside Diameter: W-1.8in H-2.16in Made To Fit Magpul QD Engineered To Allow For Low Profile Gas Block To Fit Inside