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Posted: 1/21/2010 11:40:42 AM EDT
| After putting a can on my AR I've started noticing the noise that the spring makes... Are there any ways to quiet that down? Has anyone tried an air bladder instead of the spring? |
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Some choose to use lithium grease or some other thick, sticky substance to reduce the sproing sound.
I don't know of any "air bladder" system in existence which would satisfactorily cycle the action - but America is known for its innovation, so by all means invent away and let us know what it'll sell for if/when you invent it! |
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Remove any end of wind burs on the recoil spring edges that may be scrapping down the inside of the tube and the outside of the buffer. Also, make sure that the ends of the buffer bumper roll pin is flush with the sides of the tube as well.
From there, as stated, lightly lubed inside of the tube and spring is going to get the Sprong down to about is lower level in stock form since the parts are tracking right next to you head. If you want to remove all the spring noise and get the moving parts away from your head, then the recoil spring will need to be relocated to the forward hand guard area, such as in the ZM Weapons system. |
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This is strictly just a spitball question...
What would happen if you took a long, skinny piece of soft foam rubber, shaped like a snake which was the same diameter as the coil spring and stuffed it into the center? Would it provide enough dampening to prevent the spring from vibrating without gumming up the works? It would have to be a soft, spongy type of foam rubber that would compress easily. I don't even know if it would really work. It's just a silly thought. 
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| Im going to be brutaly honest here. I have always heard the "Spring Noise" anytime I was firing an M4/M16 On a .mil range. All Colts and FN. However, I never even heard that noise once when I was getting shot at/shooting back. The spring noise is a normal part of the weapon, just accept it. |
| I installed a Blackjack Buffer rounded tip on my buffer and it eliminated the "sproing" noise. |
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There's two ways to work this. On a Collapisble stock type gun I hose the spring and buffer with Breakfree clp , wipe the excess and install. I don't notice the spring noise until the magazine is down to it's last round or two. This let's me know the gun is about to run dry.
The other way is to lightly slather the spring with a good grease such as Rig +P and that will eliminate the noise completely. |
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You could try this
http://www.buffertech.com/stores/1/AR-15_Accessories_C12.cfm I don't know how well they work but it could help eliminate the spring noise. |
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Quoted:
You could try this http://www.buffertech.com/stores/1/AR-15_Accessories_C12.cfm I don't know how well they work but it could help eliminate the spring noise. I think this is what the OP was talking about, sorta. |
My Colt HBAR with the original fixed stock makes a loud "sprong noise." My other AR's have collapable mil-spec stocks with carbine buffer tubes and springs. The springs in the collapsable stocks don't make as loud of noise. This includes one that's an SBR with suppessor. I don't know why there's a difference but generally don't notice the noise. I'm trying to hit the target 
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| The Twang Buster: http://www.ar15.com/forums/topic.html?b=3&f=124&t=481215 |
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You know, with the invent of the the JT Twang buster, softer Black jack buffer bumper, and Buffer pad, I may have take a look into the amount that the tube noise can be reduced.
Buffer pad since there is not a link to such in the thread already, [url]http://www.brownells.com/.aspx/pid=19699/Product/AR_15_M16_AR_10_AR_BUFFER_PAD[url=http:// http://] I have some Urethane and Delrin in the shop and should make up the parts for a bit of testing. Figure that when making the Urethane buffer bumper, just reduce it the amounts of the added pad and spring end cap, which will not reduce the amount that the B/C needs to go back so the bolt catch and face of the bolt depth are not changed with the added parts. With that, the only real noise will still be the spring tracking the tube and buffer OD, and contact of the carrier against the barrel extension. The spring noise could be reduced with a spray on coating to help it glide better across the surfaces after the spring has been polished (tumbler should work for that), and the carrier against the receiver extension noise could be resolved by channeling in a Key way pocket for a O ring into the face of the carrier. Granted for a service rifle, all of the above would be way over the top, but for a suppressed rig, would take it to the next level to reduce the amount of action noise itself. Now just to find the time for a bit of shop work and testing. |
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