It seems like the David Tubb chrome silicon flat wire buffer springs would be the way to go , other than the cost. No boing noise, delayed bolt unlocking( ideal for piston uppers),duty rated for 1,000,000,000 cycles,smoother recoil cycle, consistent bolt carrier velocities, iso 9002 quality control standards,etc. They say it exerts 20% more pressure in battery. I have heard you may have to cut it down a few coils depending on the buffer and ammo you are using, but once it is set-up for your rifle and ammo it should never need replacement. Also the chrome silicon wire will rust , but applying rust preventatives now and then would fix that.
For what application?
I’ve never had any problems with the GI stainless springs on my buffer and in my mags. I’m not too big on gimmickery and wild claims when it comes to aftermarket stuff. If it’s for competition, that’s one thing.
Although some people use them, I actively avoid CS springs.
Just wondering why? Every CS spring I ever used has far outlived every other kind I’ve had, and in any firearm application.
One reason is the corrosion potential. Magpul had CS springs fall WAY short of stainless in the R&D for the Pmag.
Second reason is that I tried a buffer spring in my carbean and it cause all kinds of malfs. I just stick to USGI. That’s what the military demanded, and they really aren’t dumb when it comes to weapon specs. I don’t mind changing a spring out every 5k rounds or so.
I agree, if you have something that works for you , why mess with it. I was recently reading the background of the Wolff Spring Co. on their web site and it was very interesting. I believe BCM uses a chrome silicon extractor spring, they supposedly handle the heat better and have a higher cycle life.