Features: CNC machined aluminum body Impact design goes off when it makes contact with a hard surface Durable design can be tossed or thrown for a lifetime of uses 125dBA report One requires prpopane/green gas and burst elements for operation Estimated operating costs of less that $1.00 per detonation Includes banger grenade, 30X burst elements and grenade oil Color: Black Dimensions: 4.5" x 1.75" Compatibility: Green Gas / Propane Material: Aluminum Alloy Manufacturer: Airsoft Innovations