Your Browser is OutdatedQ&A for Armaspec AR-15/AR-10 Stealth Recoil Spring — 264 Questions & 277 Answers
I would highly recommend you reach out to Odin Works to trouble shoot your issue because these springs are meant specifically for carbine length buffer tubes or rifle length buffer tubes. The buffer tube on the Zulu stock is a proprietary "Intermediate Buffer Tube" which means you will likely run into a slew of issues because the Zulu also runs its own proprietary "secondary buffer system".
The H or H2 options should work well for you.
The manufacturer doesn't state if the Armaspec AR-15/AR-10 Stealth Recoil Spring can be used in polymer buffer tubes with polymer lowers. I recommend contacting Armaspec to confirm compatibility.
No. The Armaspec Stealth Recoil Spring is only designed to be used with AR-15 with carbine-length buffer tubes.
That will depend on the barrel length and gas system, please email us at techsales@opticsplanet.com so we can further answer your question.
Please email us at techsales@opticsplanet.com to discuss your options.
It will not work with the Law Folder as the BCG extension plug will not allow the SRS to function properly.
H2 would probably be ideal, but that can vary based on any number of factors. The general consensus is to use the heaviest buffer you can that still allows your firearm to cycle reliably.
The Sig 516 factory buffer weight should be an "H." You can use other buffer weights but it is up to the user to determine the appropriate buffer weight for your rifle and how it's set up (suppressed, sbr, pistol calibers, etc).
The H1 or H2 should work fine with your setup.