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Inline Coaxial Bullpup of Molybdenum

Built a BB Machine Gun? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
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Inline Coaxial Bullpup of Molybdenum

Unread postAuthor: Molybdenum » Sun May 02, 2010 6:18 pm

Ok I chose that name for the acronym: ICBM :lol:

Anyway, this is my first bbmg ever. I built it only out of stuff I already had ('cept the brake line for the barrel) which is why It looks so messy. Its super compact, and super innacurate, but it works pretty darn well. There will almost for sure be an ICBM2 that is field useable.

Specs:
Type: Coax bullpup full block inline vortex
Barrel: 16" long 1/4" brake line
Air source: 100 psi air compressor
Rat of Fire: 80ish RPS( I really have no idea)


Image

Image

Things ICBM2 will hopefully have: smaller diameter, spring and plunger to push bbs, lexan vortex block, better trigger/valve system, portable air system, and a halfway decent paint job.
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Last edited by Molybdenum on Sun May 02, 2010 6:50 pm, edited 1 time in total.
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Unread postAuthor: clemsonguy1125 » Sun May 02, 2010 6:24 pm

Looks pretty good, any chance of a video, pretty good for a first attempt, are you planning on using HPA to portabalize it
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That is all.
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Unread postAuthor: kydavies » Sun May 02, 2010 6:28 pm

wat is the vortex chamber made out of, PVC? anyways looks sweet
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Unread postAuthor: Cannoneer » Sun May 02, 2010 6:32 pm

What an awesome first!!! I finished my first yesterday and based on what I've seen here on spudfiles this one stacks up pretty well,although I might recommend some paint remove that hose clamp glue or bolt the stock on instead.
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Unread postAuthor: irisher » Sun May 02, 2010 6:37 pm

I would definitely get HPA/Co2 for your next one. It is so fun to use it against friends :twisted:
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Unread postAuthor: Cannoneer » Sun May 02, 2010 6:47 pm

If you're poor like me you could use propane. It's cheap and in my tests proved to work well. Anything with a name like ICBM is definatelly worth putting in some extra effort for.
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Unread postAuthor: Marffy » Sun May 02, 2010 6:47 pm

looks pretty good. Does rat of fire mean Rounds per minuter or?
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Unread postAuthor: Molybdenum » Sun May 02, 2010 6:54 pm

@Marffy: ya thats rounds per second, sorry.

I've decided that instead of improving ICBM1, am just gonna work on making ICBM2 as awesome as possible. consider this "proof of concept" :wink:
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Unread postAuthor: Gaderelguitarist » Sun May 02, 2010 10:35 pm

Well I certainly hope you stick with this overall shape for ICBM2. I love the bullpup design. It looks very compact and comfortable to fire.

For ICBM2 you might consider making a vortex chamber from whatever pipe you decide to use, and then set that inside a square structural tube. Give it a nice barrel shroud and you'll make people forget that its a "toy."

The square tube would allow easy adhesion of the stock piece as well as of the main valve. Just my three cents...
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Unread postAuthor: theBOOM » Tue May 04, 2010 1:36 pm

Nice gun, I'll be waiting to see the second prototype, bit off topic but does anyone know what brakeline is made out of?? Is it steel??
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Unread postAuthor: JDP12 » Tue May 04, 2010 3:00 pm

steel.'
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Unread postAuthor: Brian the brain » Tue May 04, 2010 3:12 pm

Nice!!!
I made something a lot like that...a couple of years ago...

But mine didn't work very well..I quickly moved on... :oops:
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Oh my friggin god stop being so awesome, that thing is pure kick ass. Most innovative and creative pneumatic that the files have ever come by!

Can't ask for a better compliment!!
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