Ultimate Arms Gear Molon Labe American Flag Skull Skeleton Swords Custom Protect for KeyMod, X-Large, USA MADE Made In The USA. X-LARGE KeyMod Made Of A High Strength, Abrasion and Solvent Resistant Thermoplastic Retainer Which Houses A PVC Plate. Unsurpassed Durability And A Sleek Look Sure To Set You Apart. Both Retainer And Plate Are Equipped with Neodymium Super-Magnets, Which Creates A Solid Bond Tet Allows Quick and Easy Installation and Interchangeability of Plates. Simply Slide Into Place. Once The Plate Is Attached To The Retainer It Is Locked Into Place. That's It! No Tools Necessary. Once You Are Ready To Change Out Your Plate or Remove the Retainer, Simply Apply Downward Pressure To The Left or Right Side of the Plate; This Will Cause the Opposite Side of the Plate to Lift Up. Measure 5 1/8" X 1 3/8" & Have A Height of .30" Above The Top Of The Rail Preventing Interference with Other Accessories (6 KeyMod slots). Weigh 40 grams. Fits KeyMod.