NOVESKE NSR M-LOK HANDGUARD - Hard Coat Anodized 6005-T5 Aluminum - Ultra Light and Robust Design - 1913 Continuous Top Rail - M-LOK Direct Attachment System - Steel Barrel Nut - Includes: - Handguard - Barrel Nut - Mounting Screws - T25 Wrench - Instructions - INSIDE DIAMETER: 1.35 - WEIGHTS: 7.9 oz. - BARREL NUT WEIGHT: 3.1 oz. - Available in Black only - Made in USA