The SLR Rifleworks 308H ION Ultra Lite LR-308 M-LOK Handguard is designed to match up with a DPMS high profile upper receiver. The M-Lok slots and continuous top rail design of the 308H ION Ultra Lite allow plenty of room for mounting sights or accessories. FeaturesMil-Spec Hardcoat Anodize7075 Barrel nut w/ Hardcoat AnodizeFree Floating DesignGrade 8 FastenersAnti Rotation- Anti Slip DesignNo Special Tools Need for Barrel Nut