How to Make a Airsoft Mortar

Mortars are very common over in the Middle-East (among other places), not to mention very effective. Bringing the concept of the mortar to an airsoft field is outright destructive. Unfortunately no one makes airsoft mortars; which means you’re stuck making one yourself. Making it yourself isn’t all bad, though. By making it yourself it’s cheaper, if it needs maintenance you know how to fix it, and it can be plain fun.

This is what you need:

  • A plastic bottle (a small 20oz-ish bottle is perfect)
  • A 1-1/2ft long, 1/2in diameter PVC pipe (the diameter depends on how big the mouth on your bottle is; the PVC pipe just needs to fit snugly into the mouth of the bottle)
  • Electrical tape (or any kind of tape, for that matter; it just has to be able to be peeled off and on multiple times and still work)
  • A latex glove (like the ones doctors use; real thin and stretchable) (you can find ones like these at BJ’s or a automotive store)
  • Spray paint (It’s up to you what color to make your mortar; black is default, but OD Green looks awesome, or you can make it a fun color, it’s up to you)

Step 1 – Take your latex glove and cut a good sized square out of it (3in x 3in will do). Now take that latex square and stretch it over one end of your PVC pipe. Completely cover the hole on the one end. Stretch the latex until it’s close to breaking and tape it firmly in place. It should look something like this:

Step 2 – Slide your PVC pipe with the latex square taped onto it into the mouth of the bottle (latex side first). Slide it about 1/2 an inch into the bottle and then stop. With another piece of tape, secure the PVC pipe into the bottle by wrapping the tape very tightly around the mouth of the bottle, making a airtight seal. It should look like this:

Step 3 – Now all you have left to do is paint it. I recommend using a spray paint that’s meant for plastic, so it won’t peel off when you step on the bottle or peel the tape on and off. This is the final product (I painted mine in a dual-tone black/OD Green kind of thing):

How you shoot your mortar is you put airsoft BBs (7-10 of them) into the open end of the PVC pipe. Then you step on the the bottle with your foot. Stepping on the bottle will automatically raise the PVC pipe in the air a little bit. Put all your weight on the bottle and finally the latex will break and send a surge of air through the PVC pipe and project the BBs. Do not stomp on the bottle, just slowly put more and more weight on it until the latex snaps.

The only down side of this mortar is that to reload you have to unwrap the tape, pull out the PVC pipe, unwrap the other tap, pull off the popped latex, replace it with a new piece of latex, tape it up, put the bottle back on, and re-tape that again. Believe it or not, though, if you get a couple of teammates helping you, you can have it reloaded in about a minuet.

For accurate aiming you can even have a friend lift the PVC pipe up/down a little bit for greater/lesser distance. Although it looks pretty far from a real mortar, it fires just like one; all your BBs should rain down within a 10ft area. The mortar has a effective range of about 50ft. The BBs won’t hurt too bad, but you should be able to tell if you get hit. If you want to take your mortar to the next level (and make it look more like a real mortar), you can take a two sticks and tape them near the front of the PVC pipe (almost like a bipod).

Please give all credit for this project to SirBuffaloSushi and


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