Best spring for the money using wwii tech! - Geissele Super 42 Rifle Length Spring

Not sure if many people know this but the Super 42 spring is designed after the German MG42 machine gun! I think that's pretty cool! Anyway this spring is the only spring I use in all of my ARs! I find it simple to use and very affordable. It takes out the harmonics in the buffer tube and just works great. You can tune it with different buffers if you wish. I am pairing this spring with a BCM MK2 recoil mitigation system which is a rifle length tube. I was using a carbine length spring in this tube with a heavy buffer just to get me by and it worked okay but I think with the rifle length spring it will cycle much better. I have not found a better upgrade for the money. Like I said the first thing I do when I get a AR is put this spring in it. It eliminates the twang of a standard spring so you don't sound like you're shooting a pogo stick.