Supressed DD MK18 With Geissele buffer spring/H3 buffer?

[Clint]

If it's dedicated suppressed, dialing the gas down first is a great option.

The S42 is a high energy spring and in most cases a heavier buffer with mil-spec spring produces good results.

[rossini]

If it's dedicated suppressed, dialing the gas down first is a great option.

The S42 is a high energy spring and in most cases a heavier buffer with mil-spec spring produces good results.

It is dedicated suppressed. I neglected to mention that this is the newer MK18 with the improved gas port and I also have a Radiant Raptor-SD charging handle which also helps mitigate the gas blowback. Sounds like an H2 buffer with the stock spring could do the trick.