When buying smoke grenades for airsoft its important to get a quality, reliable, and SAFE smoke grenade. DO NOT EVER use smoke grenades that are hot burning or shoot flames or sparks... In other words dont buy anything that is military surplus or made in china pyrotechnics. These products are very likely to start a brush fire. Of the companies we have found selling smoke grenades for "paintball or airsoft," most have been selling either outdated orange smoke which is hot burning and dangerous or cheap Chinese firework grenades... not only are these dangerous, they simply dont perform well at all. The following are places where you can find high quality, cool burning smoke grenades that are in fact appropriate for use on the airsoft field:
Having used just about everything out there, we suggest going to www.SportSmoke.com. These guys manufacture their smoke in the USA and their smoke is cool burning, biodegradable, and pull-ring ignited. If you haven't checked out their stuff yet go to their site and watch the videos, these grenades are the real deal and are the safest on the market. In fact most fields i have played at stock these exclusively both because they perform well and because they wont burn down the field!