Compatible with standard delta ring assembly, barrel nut, and round front handguard cap; Lightweight with 18 slot scalloped top Picatinny rail; Extends to and meets up with upper receiver flat top, providing ample real estate for optics and other accessories; Features 24 M-Lok slots on 6 slot tracks for mounting M-Lok rails and direct accessories, easily tailoring the rifle to the user's specific requirement; 2 piece slim octagonal profile with ergonomic grooves for a solid support hand grip and superior handling comfort; Includes 2 M-Lok accessories, an 8 slot picatinny rail section for accessory mounting and a QD sling swivel adaptor; Simple and friendly installation, no gunsmithing required; Precision machined from 6061-T6 aluminum with a matte black anodize; Proudly designed and made in USA