The MI Combat Rail HD is a premium 13.5-inch handguard engineered specifically for AR-10 rifles in .308 caliber. Constructed from durable aluminum with a sleek black finish this handguard features the versatile M-LOK mounting system for maximum accessory compatibility.MI Combat Rail HD 13.5" AR-10 HandguardCompatible with AR-10 .308 caliber riflesM-LOK mounting system for accessoriesDurable aluminum constructionBlack anodized finishHigh combat rail design for tactical applicationsDimensions: 3.90" x 3.55" x 16.70"Ideal for tactical shooters hunters and competitive marksmen seeking a reliable lightweight handguard that provides excellent heat dissipation and multiple mounting options for optics grips and other accessories.