Ultimate Arms Gear AGI DVD Manual & Armorer's Course Springfield M 1903 & '03 A3 Rifles Rifles Bench Mat Package Includes: Gun Cleaning Mat + Armorers DVD Large Gun Cleaning Mat 12" x 36" Inches Assist with the Maintenance of your Firearm. Neoprene rubber backing prevents fluids from penetrating through to work surface. DVD - Video Covers Basic Gunsmithing, Assembly and Disassembly, Trouble Shooting Common Problems, Mistakes to Avoid and History.