MODTAC U-RAC Suppressor Shield MCX/MPX Rail Type Natural/Clear Coat Carbon Fiber 9.0in 18B-004-MCX-9-N. The U-RAC mounts to any standard Picatinny top rail using an enhanced Rail Grabber system. Its universal design ensures a secure recoil-proof fit across the widest range of weapon systems available. The redesigned Rail Grabber features a stronger more consistent mounting system that has passed rigorous drop testing for superior reliability and improved accuracy when mounting sighting devices. Extensively tested and endorsed by multiple military units and federal agencies the U-RAC 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. Unlike fabric wraps that trap heat and shorten suppressor lifespan the U-RAC's rigid free-floating design insulates with an air gap promoting airflow for faster cool-down without increasing peak suppressor temperatures. Proven to an operating temperature of 1000F (approximately 90 rounds of 5.56mm in under 5 minutes) the quick-disconnect system remains solid even under full-auto fire. Each U-RAC ships with the MODTAC Rail Extension for forward mounting of lasers or tactical lights over the Shield area preserving valuable handguard space. The Rail Grabber is also compatible with the Unity Tactical FUSION folding front sight. Note: Only one accessory can be mounted to the Rail Grabber at a time. The Standard Series fits suppressors up to 1.70in (43mm) OD. Specifications for MODTAC U-RAC Suppressor Shield: Manufacturer: MODTAC Fabric/Material: Aluminum Color: Natural Finish: Carbon Fiber Condition: New Width: 2 in Height: 2 in Features of MODTAC U-RAC Suppressor Shield 60percent reduction in maximum outer surface temperature Proven to 1000F operating temperature (approximately 90 rounds of 5.56mm in under 5 minutes) Rigid free-floating air-gapped design promotes airflow without increasing peak suppressor temperatures Redesigned Rail Grabber with improved consistency and drop-test proven reliability Quick-disconnect system remains secure under full-auto fire Lightweight aluminum coupler with high-temp carbon fiber outer hull MODTAC Rail Extension included for forward mounting of lasers or tactical lights Unity Tactical FUSION folding front sight compatible Standard Series fits suppressors up to 1.70 in (43mm) OD Package Contents: MODTAC U-RAC Suppressor Shield Picatinny Rail Extension MODTAC 18B-004-MCX-9-N: U-RAC Suppressor Shield MCX/MPX Rail Type Natural/Clear Coat Carbon Fiber 9.0in