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Incorporation of hopup...

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: ThornsofTime » Mon Oct 25, 2010 8:50 am

good ideas good ideas!

I think for this build I might just stick with a blowgun... easier to hide. Maybe I haven't given them enough of a chance. The first two I tried on my previous build leaked at the 120psi mark and that put a bad taste in my mouth.

On a side note... I think I see a dismantled pressure washer handle in my near future... im thinking about having the local gunsmith rifle me a 9mm steel barrel for a big boy toy...
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Unread postAuthor: Gun Freak » Mon Oct 25, 2010 6:59 pm

@ToT make sure you place it the right way, otherwise it is just the pressure of the spring holding it shut and once it opens it will stay open because of the pop-off effect.
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Unread postAuthor: lozz08 » Mon Oct 25, 2010 8:08 pm

There is a particular pressure washer on ebay that I recommend to everyone and thats this one:

http://cgi.ebay.com.au/BRAND-NEW-High-P ... 1604wt_992

They sell heaps of them and I have tested to a little over 400 psi with a shock pump.

I also recommend easton X7 eclipse arrow shaft for a barrel size 1714 because the ID is 6.035mm, pretty perfect.
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Unread postAuthor: jackssmirkingrevenge » Mon Oct 25, 2010 11:10 pm

This one is cheaper and claims to be rated to 3,000 psi, but if standard fittings are your thing and you're not part of the 'acksaw'n'epoxy clan, you'll find it difficult to use.
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Unread postAuthor: Molybdenum » Sat Oct 30, 2010 8:55 am

Does anyone else have diagrams of what they've done to incorporate hopup in a BBMG? I'm curious to see what others have done.
I know DavidVaini (sp?) has done some hopup, as well as some others, but I've never seen how those units work.
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