The Master Armorer's Mat is the ultimate solution for your gun building project. This massive mat will protect your large gun parts while the added organization trays will hold every medium and small component, making sure you don't lose any parts in the process. This isn't just a mat, it's the future of gun building.Features: – Expansive non-skid backed work area – Enlarged detailed AR15 parts view – Padded, oil and grease resistant surface – Integrated parts and tool storage tray – Detachable small parts storage case. Mfg: Real Avid