Ultimate Arms Gear Magpul MAG491 MAG 491 MOE Grey Silicone Cloth Package Includes Magpul MAG 491 Stealth Grey + Ultimate Arms Gear Cloth Magpul Industries Is MADE IN THE USA. Ultimate Arms Gear Silicone Cloth is an Essential Part of Every Shooter's Arsenal. Lubricated with Safe, Non-Toxic, Food-Grade Silicone, Our Cloths Wipe Away The Fingerprints and Body Oils that Cause Rust.