Instructables

How to Make a Sniper/Shotgun Airsoft Rifle

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video How to Make a Sniper/Shotgun Airsoft Rifle
The above video demonstrates a simple and inexpensive airgun design that can be used with airsoft pellets or a wide variety of other projectiles.

Parts:
6mm ID Brake Line (Test with airsoft pellet to check size)
1" x 4" PVC Pipe Nipple
1" Threaded End Caps (x2)
1/2" x 1 1/4" Spring (Approximate size)
Washer & Nut to fit the attached Brake Line Fittings
Brass Air Tank Valve (Schrader Valve)
Compact Bicycle Pump
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chizmuffin8 months ago
I made it, and it's AWESOME. I just have one problem: I need a solution for the pellets spilling out when i hold it downwards. I also am wondering if there is an easier and faster way to load the bullets, and if a larger pvc will make it have a higher fps.

I have a suggestion. First, for the pellet to not fall out of the barrel find where the bullet should rest and cut out a section on the barrel. Many airsoft guns have what in called the "hop up unit," this unit holds the pellet until fired out of the barrel so you can take the hop up from an old gun replace that section of the barrel.

Second problem. I would not expand the air chamber because doing this would take longer for you to fill the air chamber still having a FPS very close to the original.

I hope this helped you. :)

NightHawkInLight (author)  chizmuffin8 months ago
Very cool! Glad you like it. You can keep pellets from falling out of the barrel with a bit of paper/tissue as wadding, just like an old muzzle loading musket is loaded. I don't have a faster way to load pellets.
cangcimen4165 months ago

what is brake line,and where can i buy it?

Bowen20027 months ago
Is there walmarts in the UK? I live in the US so i wouldnt know.

So for some reason, it seems springs aren't available in the UK. It's pretty hard to do any DIY projects in this country.

Anyway...

I disassembled some cheap airsoft guns and I may have found a suitable spring as well as a barrel. That just means I need the appropriate nuts / washers etc and the PVC. They are also hard to find though. I mean, don't people need it (for the proper use) like plumbers? I wonder why nowhere sells it then. And yes I have looked around all the DIY / trade stores :(

Well, I meant England, I don't know about the other countries in the UK, but I'd imagine it's the same.

Can you make a video on how to make a cheap holographic site? And another modification is you could a make trigger instead of using the washer for even better accuracy

How would a trigger improve accuracy? How would that even work...? It would also completely change the whole design. You could probably make a grip out of wood or something though, or modify a pistol grip to put over the air pump and hot glue it on.

You might as well just buy a cheap optic rather than trying to buy one too. I know you can buy cheap scopes from China on Ali Express for like £5 ($8.40) and a red dot like the one in the video for only about £12. Just takes a long time to arrive.

Could you show how to make a magazine for it

I imagine that would be quite difficult, but you could probably make some sort of speedloader device.

gemoney1 year ago
can u make darts for it

yes you could easily make darts just like the darts for Blackhawkinlight's video for the darts in his mini cannon or you could do a variety of different things like a barrel that fits blow darts it's about 3/8 inch I think but could be wrong

knexbug11 months ago
you are awesome!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
knexbug knexbug11 months ago
!!!!!!!!!!!!
knexbug knexbug11 months ago
so dont think i do
knexbug knexbug11 months ago
i dont just do knex
That is so sick I made one, best homemade on YouTube for sure!
gemoney1 year ago
how much fps
Jonesy421 year ago
Love the 6mm brake line barrel design! I'm going to make one slightly different, with a modded sprinkler valve for trigger and a bigger air tank for more power......boo yeah :)
princeaero1 year ago
thats cool how come about the idea
treeman7781 year ago
Awesome
SmartJoe1 year ago
About how much should this cost?
KaoticBoss1 year ago
I went to auto zone, pep boys, and Reilly auto parts and all 3 only have 6.3 mm and 7.9 mm brake lines. Do you know where else i can get brake lines?? the 7.9 brake line fit the BB but it was'nt as snug as it was in your video.
NightHawkInLight (author)  KaoticBoss1 year ago
What about standard sizes? Metric may not be what gives you the best fit.
I even put some special grease around the o-ring and it still leaks
I have a problem with this, I sealed the bb with hot glue just as it said, and put it all together, and there Is a leak coming out of the end of the barrel, I am confused and kinda aggravated.
NightHawkInLight (author)  Spenceravery1 year ago
probably is the O ring. Put some pipe thread paste on it and it should seal better.
you could add a portable compressor instead of a bike pump.
Nice thing to pic how did you get the idea of that
I'm thinking about doing this using a spare airsoft barrel I have. Now I have to figure out how to incorporate the hop up into this.
Jowers35341 year ago
Ok just figured out the shotgun... But what mm brakeline did you use?
Jowers35341 year ago
How do you make the shotgun? And I have a 6.3 mm brake line, but it's too small, so what else could I use for a barrel?
Samuel kos1 year ago
My idea is to replace the PVC chamber and pump with a camping propane tank and possibly add a gravity mag
do you know the name or model number of the bike pump?
This could make for a pretty interesting underbarrel attachment.
jonthebom1 year ago
Awesome
zrhoton1 year ago
It is not just a one and done gun right?
aajaces1 year ago
Just a tip, for metal bbs for hunting (4.5mm) or whatnot put a magnet on the outside of the barrel in the chamber to make it stick in the barrel.
josephwm1 year ago
Perfect
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