For the budding airsoft grenadier, a belt that can hold as many M203 shells as it can and it's in stock at SKDTac... "The Tactical Tailor 40mm Belt will hold 12 rounds of any 40mm ammunition, such as HE, DP, shotshell or Lum rounds. Rounds are held in place by elastic loops and secured by a hook and loop flap. The adjustable belt can be worn around the waist or slung across the body. Available in Black and Coyote Brown."