This requirement covers two types of olive drab, double-wall roto-molded transport cases: twelve 12-count cases and one 6-count case, all made with black carbon steel hardware. Each case must securely hold M4 or M16 rifles with flash hiders and accommodate optics such as Aimpoint, Trijicon, and EOTECH models. The 12-count case includes eight comfort grip handles and external dimensions of approximately 45.40" L x 24.00" W x 26.50" D, while the 6-count case has four spring-loaded handles and a depth of 18.50". Both types feature a locking rifle bar, four shock-absorbing wheels, a humidity indicator, and a pressure relief valve.