10-01-2019, 03:28 AM
I've got probably a dozen different buffer springs including the Tubbs flat wire. I've found the only thing it does uniquely is add frustration installing and removing it. Otherwise the Armalite AR10 carbine spring or Sprinco red springs are heavier and more consistent. I've got 1.2k rounds on the Sprinco red spring in my Grendel and it feels perfect. I also run the Sprinco red spring in an AR10. I have Sprinco blue springs in a 16" carbine and 10" SBR, both suppressed.