How to make a mortar for airsoft This was found on on the internet. All right to the owner. In this Instructable, I will show you how to make a pneumatic, airsoft mortar. Mine shoots 100 - 200 feet and is sturdy and durable. The simple design makes the creation accurate (tripod is adjustable) as well as compact. You may sling the airsoft mortar around your back (due to a sling) for mobility. This weapon generates a wide enough spread to hit multiple people at once. Overall, the mortar only costs between $ 20 - 25. I AM NOT RESPONSIBLE FOR ANY INJURIES CAUSED BY THIS INSTRUCTABLE! Step 1: What You Will Need ...