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Ar-15 Spring


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#1 cookiecrusher

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Posted 22 July 2008 - 06:16 PM

Hey guys, I am fixing to build a GNS, but I have no idea where to get an AR-15 spring. I know it is removed from another air soft/bb gun, but i don't know which one. Does anyone have an AR-15 spring you are willing to sell, or what would be a good spring to use instead. Thanks in advance! P.S. ( I am almost completed with the plunger, I just need the spring)

#2 Blacksunshine

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Posted 22 July 2008 - 06:24 PM

Hey guys, I am fixing to build a GNS, but I have no idea where to get an AR-15 spring. I know it is removed from another air soft/bb gun, but i don't know which one. Does anyone have an AR-15 spring you are willing to sell, or what would be a good spring to use instead. Thanks in advance! P.S. ( I am almost completed with the plunger, I just need the spring)


Umm.. An AR-15 spring comes from an AR-15 (REAL GUN). Its the buffer spring. From a gun shop the package costs about 30 bucks. You can get a part of one from some dude on Ebay for cheaper but again its only like 1/4 of the whole thing.

Edited by Blacksunshine, 22 July 2008 - 06:24 PM.

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Forgive my spelling and grammar. I post from my cell phone a lot. Sometimes when I'm on the can at work.

#3 Kid Flash

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Posted 22 July 2008 - 07:29 PM

How much of the spring do you need for a longshot?
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#4 Split

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Posted 22 July 2008 - 08:39 PM

http://nerfhaven.com...?showtopic=7527
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Teehee.

#5 cookiecrusher

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Posted 22 July 2008 - 10:15 PM

Well, I'd rather not spend that much on the spring. Is there a spring that can be bought at Ace that would be a worthy replacement?

#6 CaptainSlug

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Posted 22 July 2008 - 10:24 PM

Hey guys, I am fixing to build a GNS, but I have no idea where to get an AR-15 spring. I know it is removed from another air soft/bb gun, but i don't know which one. Does anyone have an AR-15 spring you are willing to sell, or what would be a good spring to use instead. Thanks in advance! P.S. ( I am almost completed with the plunger, I just need the spring)


Umm.. An AR-15 spring comes from an AR-15 (REAL GUN). Its the buffer spring. From a gun shop the package costs about 30 bucks. You can get a part of one from some dude on Ebay for cheaper but again its only like 1/4 of the whole thing.

What? No no no, every gun shop I have ever asked sold me the buffer/recoil/action spring for $1-$3.

For very similar springs you can order a pack of 5 springs from Mcmaster.com
Just search for part# 9637K26
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#7 cookiecrusher

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Posted 22 July 2008 - 10:33 PM

Thanks CS, I could also use the leftover springs to build a +bow. (thats a project for when I gain access to more than a hacksaw and dremel)

#8 Blacksunshine

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Posted 23 July 2008 - 04:46 AM

Umm.. An AR-15 spring comes from an AR-15 (REAL GUN). Its the buffer spring. From a gun shop the package costs about 30 bucks. You can get a part of one from some dude on Ebay for cheaper but again its only like 1/4 of the whole thing.

What? No no no, every gun shop I have ever asked sold me the buffer/recoil/action spring for $1-$3.

For very similar springs you can order a pack of 5 springs from Mcmaster.com
Just search for part# 9637K26


What?! My local shop are bastards then. But even still Online spring packs i've come across are still mid 20's.
Tho there was more then just the buffer spring so that is probably why. They didn't seem to have the spring alone.

I will also have to check out those Mcmaster springs. Thanks Slug the price is what has kept me from picking one up.

Edited by Blacksunshine, 23 July 2008 - 04:47 AM.

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Forgive my spelling and grammar. I post from my cell phone a lot. Sometimes when I'm on the can at work.

#9 Thom

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Posted 23 July 2008 - 09:29 AM

What? No no no, every gun shop I have ever asked sold me the buffer/recoil/action spring for $1-$3.

For very similar springs you can order a pack of 5 springs from Mcmaster.com
Just search for part# 9637K26

Are those approximately the same strength?
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#10 Morally Challenged

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Posted 23 July 2008 - 12:08 PM

Is this the kind of spring you are talking about?
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#11 analogkid

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Posted 23 July 2008 - 12:52 PM

Yes it is.
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#12 tatertotguy

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Posted 23 July 2008 - 02:56 PM

I saw an extra strenght AR-15 buffer spring for $4.95 new.
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#13 CaptainSlug

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Posted 23 July 2008 - 11:14 PM

What? No no no, every gun shop I have ever asked sold me the buffer/recoil/action spring for $1-$3.

For very similar springs you can order a pack of 5 springs from Mcmaster.com
Just search for part# 9637K26

Are those approximately the same strength?

Yes. Total compression load is 32lb, wire gauge and coils per inch are very close. Only a slight difference in diameter.
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The little critters of nature, they don't know that they're ugly. That's very funny, a fly marrying a bumble bee. I told you I'd shoot, but you didn't believe me. Why didn't you believe me?

#14 Rogue Warrior

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Posted 24 July 2008 - 12:50 PM

hey slug, What does the diameter of the spring do? Does it give it more powere or what?
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#15 CaptainSlug

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Posted 24 July 2008 - 01:42 PM

hey slug, What does the diameter of the spring do? Does it give it more powere or what?

Nothing much if the change in size isn't very significant.
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The little critters of nature, they don't know that they're ugly. That's very funny, a fly marrying a bumble bee. I told you I'd shoot, but you didn't believe me. Why didn't you believe me?

#16 Kazimir

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Posted 24 July 2008 - 02:28 PM

What? No no no, every gun shop I have ever asked sold me the buffer/recoil/action spring for $1-$3.

For very similar springs you can order a pack of 5 springs from Mcmaster.com
Just search for part# 9637K26

Are those approximately the same strength?

Yes. Total compression load is 32lb, wire gauge and coils per inch are very close. Only a slight difference in diameter.



Total compression load strikes me as being really useful if you also know equilibrium length and compressed length, because then you can figure out a couple of things, including the spring constant which will then permit you to approximate when the compression load would be for any arbitrary length of the same spring - that is, say you have an AR-15 spring and you want to cut it to some other length, you can then calculate how much force that length would give you before you ever cut the damn thing - or even purchase it in the first place.
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#17 CaptainSlug

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Posted 25 July 2008 - 12:22 AM

What? No no no, every gun shop I have ever asked sold me the buffer/recoil/action spring for $1-$3.

For very similar springs you can order a pack of 5 springs from Mcmaster.com
Just search for part# 9637K26

Are those approximately the same strength?

Yes. Total compression load is 32lb, wire gauge and coils per inch are very close. Only a slight difference in diameter.



Total compression load strikes me as being really useful if you also know equilibrium length and compressed length, because then you can figure out a couple of things, including the spring constant which will then permit you to approximate when the compression load would be for any arbitrary length of the same spring - that is, say you have an AR-15 spring and you want to cut it to some other length, you can then calculate how much force that length would give you before you ever cut the damn thing - or even purchase it in the first place.

Spring constant is 131.9
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The little critters of nature, they don't know that they're ugly. That's very funny, a fly marrying a bumble bee. I told you I'd shoot, but you didn't believe me. Why didn't you believe me?

#18 Kazimir

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Posted 25 July 2008 - 03:14 PM

Total compression load strikes me as being really useful if you also know equilibrium length and compressed length, because then you can figure out a couple of things, including the spring constant which will then permit you to approximate when the compression load would be for any arbitrary length of the same spring - that is, say you have an AR-15 spring and you want to cut it to some other length, you can then calculate how much force that length would give you before you ever cut the damn thing - or even purchase it in the first place.

Spring constant is 131.9

Thanks!

Now my plans for sneaking actual metrics into NerfHaven is underway!

Seriously, though, we can probably demand better metrics for ranges than we do, through some standardization. how useful would that be? I don't honestly know, but at least then we'd all be on the same page as to what constitutes 'shoulder height' and 'level'. (personally, I think we ought to forego that altogether and simply use muzzle velocities, but that brings up the issue of high wind resistance on darts and.. gah. Maybe I spent too long in physics.)
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