MDT NanoGuard Gun Oil - 1.0 US FL OZ Bottle The final step in the Nanoguard lineup, MDT Gun Oil is built for shooters who demand smooth, reliable action every time they pull the trigger. Loaded with tungsten disulfide nano-lubricants, it's built for metal-on-metal zones-where friction becomes failure, where heat and wear would normally compromise performance. Whether it's your precision rifle, your go-to AR, or a well-worn handgun, this oil keeps moving parts clean, consistent, and protected-without gumming up, leaking, or burning off.