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Buffer spring concern - Printable Version

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Buffer spring concern - JaxsonsOldMan - 04-04-2017

So, I put my Grendel upper on my 5.56 lower. It seams to work just fine with hornady 123 sst, but when using the cheap wolf rounds, it makes a horrible spring noise. It seams to feed and fire fine, but I wasn't sure whether or not it was something I should make adjustments to. Should I just steer clear of wolf and stick with better ammo? I mainly just got the cheap stuff to play around with since it's mainly a hunting rig. Thoughts?


Buffer spring concern - LRRPF52 - 04-04-2017

The recoil spring noise in rifle-length tubes is typical AR15.

You can polish your tube or lube it and the spring lightly, or get a JP SCS if it bothers you.

I never hear it since most of my rifles have carbine RETs. I have one AR15 retro with a rifle-length tube that I rarely shoot.


Buffer spring concern - JaxsonsOldMan - 04-05-2017

So, is it ultimately nothing to worry about? Both barrels use mid length gas systems.


Buffer spring concern - LRRPF52 - 04-05-2017

It's very normal for the rifle-length RET (receiver Extension Tube) on the AR15.

We call it the "sproing".


Buffer spring concern - Drillboss - 04-05-2017

My first build with an A2 stock and a rifle length tube had a horrendous "sproing". A little oil on the spring made it go away. I wonder if a film of bearing grease would have been the ticket.


Buffer spring concern - LRRPF52 - 04-05-2017

I've seen guys in 3-Gun who polish the inside of their RET with a drill and a cloth using JB bore paste, stripping the dry film lube meant to suspend lubricant per the Mil-Std, if the tube even had it. Most tubes on the market are not made anywhere near the TDP.

They would then coat the recoil spring in some type of grease. Not sure how it would affect the system in the long run, but it slicked them up for sure.


Buffer spring concern - JaxsonsOldMan - 04-05-2017

Perfect! Thank s for the help guys!


Buffer spring concern - 85_Ranger4x4 - 04-07-2017

I have heard a lot of solidiers kind of liked it because it was an audible noise to tell them when their mag was empty without the awkward click of a hammer dropping on a empty chamber.

My 5.56 with a A2 stock, it isn't obnoxious but it is noticeable.