Show us your pneumatic spud gun! Discuss pneumatic (compressed gas) powered potato guns and related accessories. Valve types, actuation, pipe, materials, fittings, compressors, safety, gas choices, and more.
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jackssmirkingrevenge
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Tue Dec 17, 2013 6:53 pm
Still no suppressor

but nice job!
You can make an adjustable rear sight with a bolt, three nuts and some epoxy

hectmarr wrote:You have to make many weapons, because this field is long and short life
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bahur47
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Tue Jan 07, 2014 2:52 pm
I have a short question - is it dangerous to grease my airtank(200 bar) with silicone grease from inside to prevent it from rusting
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Ragnarok
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Tue Jan 07, 2014 3:49 pm
I'll be straight up and say I don't know the answer to that exact question, at least not well enough to be certain. I suspect it's not dangerous - but then again, weird things can happen at high oxygen concentrations.
However, I do have another solution - only fill the tank with dry air. Many 200 bar air sources already have a water filter built in but, even if yours doesn't, it's probably possible to add one.
Does that thing kinda look like a big cat to you?
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jackssmirkingrevenge
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Wed Jan 08, 2014 5:41 am
Ragnarok wrote:weird things can happen at high oxygen concentrations.
Technically the concentration doesn't change, the proportion is the same even if you compress it. It should be safe.
hectmarr wrote:You have to make many weapons, because this field is long and short life
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POLAND_SPUD
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Wed Jan 08, 2014 9:27 am
Proportion might be the same but more of it occupies the same volume so I wouldn't say it's as safe. Similarly when you draw vacuum in a container you can stop things from burning (f.e. lightbulb filament) - proportion is the same but there's just less oxygen
Children are the future
unless we stop them now
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Ragnarok
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Wed Jan 08, 2014 11:43 am
jackssmirkingrevenge wrote:Technically the concentration doesn't change
I'd define shoving 200 times more oxygen into the same space as more concentrated, even if it's still in the same proportion to nitrogen. I know the buffer gas is an important factor and I'm pretty sure the whole thing should be outside flammability limits (after all, hybrid mixes that are more than slightly out often won't ignite).
However, between adding something to the tank (no matter how safe it "should be") or the unquestionably safe standard practice of removing the moisture, I'd put my faith in the latter.
Does that thing kinda look like a big cat to you?
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jackssmirkingrevenge
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Thu Jan 09, 2014 5:09 am
Ragnarok wrote:However, between adding something to the tank (no matter how safe it "should be") or the unquestionably safe standard practice of removing the moisture, I'd put my faith in the latter.
That's true. Still, found
this, it seems an issue for pure oxygen but not compressed air.
hectmarr wrote:You have to make many weapons, because this field is long and short life
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bravootome
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Thu Jan 09, 2014 9:44 am
[quote="bahur47"]warhead052 - I'm from Bulgaria and here, in almost every online weapon store there are HATSAN 125 barrels for 22 euros and HATSAN AT 44 for 40 euros ( 125 is for break barrel, at44 is for pcp)
Dont you need special documents to buy a barrel ? Please post a link with a barrel for sale.
I am looking to put my hands on a 4.5 , 5.5 mm barrel for a long time. There are not for sale in Romania, and if they are you need docs. and police autorization................
come undone
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bahur47
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Thu Jan 09, 2014 11:40 am
bravootome wrote:bahur47 wrote:warhead052 - I'm from Bulgaria and here, in almost every online weapon store there are HATSAN 125 barrels for 22 euros and HATSAN AT 44 for 40 euros ( 125 is for break barrel, at44 is for pcp)
Dont you need special documents to buy a barrel ? Please post a link with a barrel for sale.
I am looking to put my hands on a 4.5 , 5.5 mm barrel for a long time. There are not for sale in Romania, and if they are you need docs. and police autorization................
Here in Bulgaria you dont need permition to buy air rifle. You only need to registrate it in the police if its 24+ joules, so there are no limitations on air rifle barrels either, but for firearm barrel - you need a document. Here's a link
http://www.pushka.eu/product/Spare-part ... -44-4.5-mm .
Also thank you guys for answering my grease question.
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wyz2285
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Thu Jan 09, 2014 5:18 pm
Here in Bulgaria you dont need permition to buy air rifle. You only need to registrate it in the police if its 24+ joules, so there are no limitations on air rifle barrels either, but for firearm barrel - you need a document. Here's a link
http://www.pushka.eu/product/Spare-part ... -44-4.5-mm .
Are you freaking joking with me or that site sells blank firearm cartridges??? Then as Bulgaria is inside EU the customs won't check the packages... Then all I need it's a barrel and machine some bullets... I must be dreaming just yesterday I was think about getting a .22 now looks like I have a bigger range of good to choose.
CpTn_lAw wrote:

"yay, me wanna make big multishot pnoob with 1000 psi foot pump compressor using diamond as main material. Do you think wet bread make good sealant? "
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bravootome
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Sun Jan 12, 2014 4:47 am
Are you freaking joking with me or that site sells blank firearm cartridges??? Then as Bulgaria is inside EU the customs won't check the packages...
Actualy someone from my country had been put on charge for buying a airgun from Bg. - He went to police to register it and its power was 300 mps ( in Ro guns over 220 mps are considered firearms) plus it was expedited with a fast expedition service ( without respecting the policy regarding importing guns). Stupid lows in my country ! Even to buy lead pellets is a bit of a problem.
come undone
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jackssmirkingrevenge
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Sun Jan 12, 2014 4:51 am
wyz2285 wrote:Then as Bulgaria is inside EU the customs won't check the packages...
Just because there are no customs charges, it doesn't mean that goods aren't inspected.
hectmarr wrote:You have to make many weapons, because this field is long and short life
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wyz2285
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Sun Jan 12, 2014 6:45 am
I bought all my airsoft good from Spain and Poland.
In Portugal according to the law airsoft guns needed to by painted but not in Spain and Poland so all the guns arrive with original paint without any problem, as soon as they are shipped by a third party transport, not national service.
CpTn_lAw wrote:

"yay, me wanna make big multishot pnoob with 1000 psi foot pump compressor using diamond as main material. Do you think wet bread make good sealant? "