So, first time out with my first AR...everything went perfect! Ate everything I fed her, and hit where I pointed. But interesting side effect to electronic earmuffs (I guess). While the report was successfully muted (+ 80db cutoff), it amplified the low DB noise ie: the buffer spring "SPROING!" at return to battery. It did get distracting.

 

I read on another board that you can lightly spray the spring with plasticote, and it will subdue the spring noise. Sounds like a cleaner and more effective method than greasing it up.

 

Any thoughts?

I was originally unaware that I was supposed to lightly grease the spring. I later greased it, and there was NO difference in noise. If this is a viable fix, I'd love to try it.

WTH....I'll give it a try and let you know.

I'd just be afraid the plasticote would start peeling off after awhile. It moves back and forth pretty violently in there. Then you may have to deal with cleaning out plasticote debris from ther buffer tube.

 

JP rifles has the silent captured spring buffer assembly, albeit at $125...

What's the big deal with a sproing noise? I always thought it came with the territory. I kinda like the unique sound of my rifle.

Holy Crap. I am more deaf than I thought? I never hear any spring noise on my AR, I always shoot with my muffs on?

I've heard it with some ARs - depends on the stock and buffer tube you use. Ace ARFX Skeleton stock - I've heard it with. My AR with PSA Buffer/tube and magpul stock, nope.

I have a Sully stock with a st-t2 buffer and no spring noise at all.

I've heard it with some ARs - depends on the stock and buffer tube you use. Ace ARFX Skeleton stock - I've heard it with. My AR with PSA Buffer/tube and magpul stock, nope.

 

X2, Ive noticed the same thing. My freinds AR with the ACE I can hear it, but mine with the PSA MOE kit & Spikes T2 buffer I dont hear a thing.

I assume what I'm hearing is what everyone else is hearing. I would describe the buffer noise of my AR as a "THWURR". Shot a Bushmaster that sounded similar, but not quite the same. Both had a standard A2 stock.

1) If you are going to grease it, you need to use grease with the ability to resist shear, otherwise it just rubs off quickly. I use slide glide heavy on mine.

2) The spring cna make a difference. JP sells a centerless ground spring that helps some for about he same price as a regular spring.

3) Your extension tube matters. Some are smoother inside than others.

+1 on the lube. I put some side glide on both my rifle and carbine springs and they're quiet as a mouse fart now. But don't lay it on too heavy not use too viscous of a grease as that may potentially dampen the action can cause cycling issues.

The spring noise is definitely stock specific. My Bushmaster doesn't make the noise.

The spring noise is definitely stock specific. My Bushmaster doesn't make the noise.

 

I agree. When first got my AR, it had some cheapo collapsible stock on it and I could sort of hear the noise being described. After I put my MFT BUS on, I don't hear a thing.

My a2 stock has that noise, but I hardly ever notice while im shooting. I'm way to focused on the sight picture.

I don't hear the "sproing" on my AR. (Spikes ST-2 buffer and Magpul UBR stock)