The Reptilia Handguard features patented turn buckle technology and 9.4" M-LOK configuration for superior performance and modularity on AR-15/M4 upper receivers.Reptilia Handguard 9.4" M-LOK BlackPatented turn buckle technologyBillet 7075-T6 aluminum constructionMIL-STD Type III Class 2 hard anodize finishCompatible with all M4 upper receiversIncludes required barrel nut and hardwareMade in the USAEngineered for durability and precision this handguard delivers professional-grade performance for tactical applications competitive shooting and custom AR-15 builds.