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MP5 Strafer

This area is for the discussion of BB or airsoft sub machine guns, and or other small arms such as pellets.
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Unread postAuthor: singularity » Fri Oct 05, 2007 10:39 pm

hey that sight looks very familiar, is it by chance a CYMA? looks like the quality of a CYMA, especially the gear box, is that a CYMA MP5?
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be sure to check out my <a href="http://www.spudfiles.com/forums/ak-style-airsoft-vortex-gun-t10959.html">AK Styled Vortex Gun</a> and my <a href="http://www.spudfiles.com/forums/at-4-t9627.html">AT-4 Rocket</a>

upcoming projects... finalized clip fed BBMG and ball point pen sniper
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Unread postAuthor: Dornep » Fri Oct 05, 2007 10:45 pm

Yes sir it is.. I payed $80 for it at a gunshow last year.. Came with a bunch of other stuff and a hi cap magazine but I trashed them. I probably got jipped... lol
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Unread postAuthor: Griff » Sat Oct 06, 2007 8:30 am

Thats totaly sick ( I tingled with joy when I saw that ) I bet if you perfect the thing you could give the madbull co2 gearbox a run for its money ( madbulls is only semi by the way ) If the hose is too small you sould try air compressor hose. 20 meters is about 16 dollars. Get a drum mag and you will dominate the airsoft feilds.
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Unread postAuthor: jackssmirkingrevenge » Sat Oct 06, 2007 8:44 am

Since in the original gun the reciprocating mag feed mechanism is cycled by the gearbox, how are you going to make it feed ammo now? Or are you going to replace the magazine with a BB chamber?
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Unread postAuthor: Griff » Sat Oct 06, 2007 9:10 am

I dont think that the gearbox feeds the gun. I had a neonfire g36c and the bbs were fed from the mag to the gun with a spring. The gearbox just blew the bbs out the barrel.
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Unread postAuthor: iPaintball » Sat Oct 06, 2007 11:05 am

Excellent work, but I'm kinda confused about how it works. Will you be using a vortex block?
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Summer Projects:
CO2 tank hybrid: Gotta fix the meter :(
Cane gun: Needs a pilot/fill setup
1.5" piston valve gun: Almost done
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Unread postAuthor: spanerman » Sat Oct 06, 2007 11:16 am

Griff wrote:I dont think that the gearbox feeds the gun. I had a neonfire g36c and the bbs were fed from the mag to the gun with a spring. The gearbox just blew the bbs out the barrel.


no the front nozzle on the gearbox recipricates....feeding the BB's into the hop unit
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Unread postAuthor: Dornep » Sat Oct 06, 2007 3:16 pm

Yes on the original gearbox, the piston has a nipple of sorts that sticks foward into the hop up assembly over the bb feed hole. That only allows the bb's to enter the "chamber" when the piston has retracted and is about to fire.

I'm hoping that the bb's will just kind hangout and wait for the rush of air to hit them and send them on their way. If not I will have to come up with something else but I'm still optimistic this will work.

I'm going to epoxy the connection from the blowgun to the hop up assembly today, I will also get the fittings needed to hook it to an air compressor or propane bottle. I also need some BB's as I gave all my old matrix bb's away.
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