The NOXS Rail System by Seekins Precision was specifically designed to enhance the performance, appearance, accuracy, and utility of your AR-platform! Available in 7”, 9”, 12”, and 15”, the NOXS Rail System utilizes a 1-piece 6061-T6 aluminum construction with an ultra-skeletonized, free-floating design. This drastically reduces weight when compared to handguards of a similar class, as well as improving accuracy. Other features of the NOXS Rail System include a full-length picatinny rail with more than enough space for optics and iron sights, and multiple MLOK attachment points accommodates the use of accessories such as fore-grips, and tactical lights/lasers. In addition, the NOXS Rail System includes all of the necessary mounting hardware, and features a sleek Anodized Armorer Black finish. Features of the NOXS Rail System: Available in 7”, 9”, 12”, and 15” lengths Ultra-skeletonized, free-floating, 1-piece design6061-T6 aluminum construction Full-length picatinny rail Multiple MLOK attachment points Inside diameter: 1.350” Seekins Precision NOXS M-LOK 15" Rail System Handguard 0010530053