Purchasing "mil-spec" (military specification) smoke grenades as a civilian is currently highly restricted in the United States due to recent federal regulatory changes. While true military-issue M18 smoke grenades are generally not available for direct civilian sale, "military-style" alternatives exist for recreational and professional use.
: These devices must be shipped via palletized truck freight (no UPS/FedEx air/ground) and require specialized, secure storage in approved magazines. Where to Buy Military-Style Smoke Grenades buy mil spec smoke grenades
Several manufacturers produce high-output smoke grenades that mimic military performance for training, filming, and airsoft, though they may have specific purchasing requirements. Maximum HC Smoke Military-Style Canister buy mil spec smoke grenades