USED Rugged Suppressors Rugged Universal Mount Titanium 1.375x24 RUM002. U.M. is made from US Grade 5 Titanium. The R.U.M. is compatible with Ruggeds Dual Taper Locking System mounts fixed mounts booster assemblies and 3-lug mounts as well as industry-standard mounts. At 2.4 ounces it is one of the lightest universal mounts on the market. Specifications for Rugged Suppressors Rugged Universal Mount Titanium: Manufacturer: Rugged Suppressors Fabric/Material: Grade 5 Titanium Threads per Inch: 1.375x24 Weight: 2.4 oz Package Contents: Rugged Suppressors Rugged Universal Mount Titanium Rugged Suppressors RUM002: Rugged Universal Mount Titanium 1.375x24