MODTAC M-RAC XL Suppressor Shield Sig Sauer MCX Virtus & Spear -LT Rail Type Natural/Clear Coat Carbon Fiber 6.0in. Extensively tested and endorsed by multiple military units and federal agencies this cutting-edge design combines an optimal air gap efficient venting and low thermal transfer materials for a staggering 60percent reduction in both maximum outer surface temperature and suppressor cool-down time significantly extending the lifespan of your suppressor compared to traditional fabric-style suppressor covers that trap heat inside your suppressor. Specifications for MODTAC M-RAC XL Suppressor Shield: Manufacturer: MODTAC Fabric/Material: Aluminum Color: Natural Finish: Carbon Fiber Package Contents: MODTAC M-RAC XL Suppressor Shield MODTAC 18B-022-SPLT-6-N: M-RAC XL Suppressor Shield Sig Sauer MCX Virtus & Spear -LT Rail Type Natural/Clear Coat Carbon Fiber 6.0in