Airsoft grenade manufacturing

Let's start, perhaps, with a list of materials we need. We need:
Petard. I use corsairs number 4, because they are not so expensive and rare as No. 6, they are smaller, but it is quite sufficient for our needs.
Energoflex with a diameter of 35mm and a wall thickness of 6mm. Energoflex in the people, usually called "insulation for pipes." At least, the sellers in the stores quickly understand what I am looking for when I say that. It is usually sold in pieces of 2 meters. On 1 grenade it takes about 9cm of such a "tube".
Peas. You can any
matches. Consider that for 1 grenade 1 chirkash leaves a box and 3-4 matches.
A sling is 1cm wide. Usually I take in a sewing shop black or olive. On 1 grenade consumes about 11-12cm.
Elastic bands for money. You can buy in any office supply store. 1 grenade - 1 gum.
Self-adhesive black oilcloth or any other color you like. You can buy in building materials. On 1 grenade you need a piece of about 14x18cm.You can and tape
Tools in the range: heat gun and hot melt glue, scissors, stationery knife, ruler, etc., that you need to work.
Having prepared everything you need to start. The whole process I divided into 4 stages:
Preparation of firecrackers and the initiation system.
Making an obolka for a grenade.
Assembling all parts.
Giving a product a normal appearance (if you do not plan to use grenades at official games and are not so aesthetically refined by themselves, then you can’t not perform 4 points, but remember that pyrotechnics is allowed for official games not only safe, but also entourage) .
1. Preparing a firecracker and an initiation system.
First of all I want to say that the heat gun was really a very good solution for assembling grenades, as it is easy to apply, it cools quickly and fixes all the materials used quite well. Of course, in the absence of it, you can use ordinary glue, for example, “moment”.
So, we take a firecracker and fix 3-4 matches on top of it so that the heads of matches lie exactly on the edge of the firecracker slightly speaking behind it.At the same time, it is necessary to pay attention to the fact that the heads of matches are in direct contact with the flammable composition of the squib itself. This guarantees us a 100% firecracker initiation when a match ignites. Matches can be placed along the body of a petard. We don’t forget about the contact of match heads with firecracker in this case.
After the glue dries, cut off the protruding ends of the matches. I use a normal garden pruner.
Next, take a sewing line. Cut it into strips of 11-12cm, scorch the cut ends to remove fluffed threads. Next, “derbanim” matchboxes cutting chirkashi. Then we glue the chirkashi to the line with the glue "moment". I, personally, bend and sew in addition the opposite lines of the lines for the formation of a loop opposite to the chirkash. You can then thread the ring into it or fasten a snap in the cartridge pouch to initiate a grenade with one hand.
This system is not secure !!! When a grenade falls from a height, it can  independently  work !!!
Having made the number of "chirkasas on a sling" we need, we attach them to firecrackers as shown in the picture:
Please notethat you need to press the chirkash tightly against the squib and the heads of matches, but not too tightly so that when you pull out his matches, they light up. Attention! Take special care at this stage, because accidentally initiated firecracker can not be extinguished! You should also not check the reliability of the chirkash fastening to the squib by trying to pull the sling!
2. We make the body of our grenade.
To do this, take the insulation pipe and cut it into pieces. The length of my pruning is about 9 cm, but you can measure it yourself by attaching your firecracker and taking a 1.5 cm tolerance for the bottom and top of the grenade. Next, on each workpiece outside should be cut 3-5mm deep across the surface of the housing. This will allow the corsair 4 to tear the casing more easily.
After cutting the hulls, cut out from the same energy-complex the circles for the bottoms and the lids of the grenades. The diameter of the circles is equal to the inside diameter of the grenade body.
After that we stick the bottom of the grenade:
Now we make the cuts on the prepared mugs for garnet covers. In this slot we will sell our line with a chirkash.
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At this, perhaps, the stage of preparation of components is over. Go to the assembly of grenades.
3.Assembling parts.
Take a firecracker with a sling and a chirkash attached to it and place it on the bottom of the hull. In order to fasten it there, we first make a drop of glue on the end of the firecracker, which, while freezing, fixes the petard inside the grenade body.
Next, we fall asleep peas evenly distributing it around the petard. Take it a good morning so that the peas do not rattle inside the grenade later.
Then we close the blanks with covers. We seal the covers and let them dry.
Everything, in fact, our grenade is ready. Now we just have to bring it into a divine form:)
4. Giving the product a normal appearance.
Why do I use the self-adhesive film? Because as a result of numerous attempts to dye energy-energy, I came to the conclusion that this was too useless. Energoflex, as a matter of fact, is a cellophane sponge and the paint on it does not hold and flies instantly - just put the grenade in the pouch ...
So, take the sheets of film, cut it into 14 by 18 cm. Further, I cut each such sheet into 2 parts (again, in order to facilitate the “building breakthrough” to the petard).Then I take a grenade and paste it with a film so that the ends of the grenade come out beyond the edge and can be bent to its top and bottom.
We cut the protruding ends of the film into strips and fold the firecrackers to the bottom and the cover.


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