Maximum HC Smoke Military-Style Canister

An old green smoke grenade canister with yellow writing that says `CM military style maximum smoke HC Defense Technology` sitting on a car seat with other munitions behind it. The canister is nearly 2.5 inches in diameter and 5.5 inches long. The black plastic trigger cap and lever have come off during use. It's covered in a thin layer of dust or residue.

Maximum HC Smoke Military-Style Canister; item: 1083 by Defense Technology® and containing Hexachloroethane