Bulldog Cases Hard-Sided Nylon 40 x 14-Inch Black Tactical Case (Fits Ar-15 M4/M6) Ballistic Nylon Fits AR15 M4/M6 (Die Cut) 40" x 14" Durable, Hard reinforced composite construction Die cut foam for exact custom fit Heavy Duty, water resistant Nylon outer shell Durable, hard reinforced composite construction with heavy-tudy, water-resistant, nylon outer shell Soft fur lining on top lid Die-cut foam for exact custom fit Large velcro accessory pocket Exterior size 40" x 14";Interior size 38" x 13"