BlackHawk Chem Agent Large Pouch MK4. OpticsPlanet Inc is an Authorized US Distributor for BlackHawk Ammunition Pouches. BlackHawk Law Enforcement Duty Gear Chem Agent Pouch. Large. Holds MK4 size chemical agent canister. Size: Large We offer complete line of BlackHawk Ammunition Pouches. For our complete selection of products by Blackhawk Tactical on sale please visit our Blackhawk Tactical page. For more Aerosol Pouches please visit our Aerosol Pouches store section. Specifications for BlackHawk Chem Agent Large Pouch: Manufacturer: BlackHawk Fabric/Material: Cordura Color: Black Size: Large Finish: Black Cordura Nylon Features of BlackHawk Chem Agent Large Pouch: The large Chem Agent Pouch is molded from durable CORDURA nylon for years of dependable daily use. It holds MK-IV pepper sprays or similar 7.5-inch canisters securely with its oversized flap closure. Package Contents: BlackHawk Chem Agent Large Pouch BlackHawk 44A501BK: Chem Agent Large Pouch MK4