Appalachian Tough Foam is fantastic! It is stiff enough to protect your gun, yet has just enough give when needed. It cuts like butter with an electric knife and hollows out well with a straight router bit. I would recommend having Peter cut the foam for your gun if possible. He does a fantastic job. Carolina Custom Foam is a great company to work with. Peter is very knowledgeable and answers emails and questions quickly. You won't be disappointed with this company!