Here is a hard case designed to protect your firearm. 5.11 Hard Cases are injection molded from lightweight, high-strength poly-propylene copolymer resins to serve as a crush-proof, dust-proof, and fully submersible water-tight protective solution for your gear. They feature a temperature range of –70°F to +160°F, UV resistance, and automatic pressure regulation.
These cases have a stackable design and trigger release latches. They are tough and exceed the Department of Homeland Security and Airline specifications for protective cases. You can get yours for under $270.