Post them up!
Griffin Armament M4SD II will work with any A2 style bird cage and the Griffin M4SD II comps. That’s as far as I’ve experimented. Make sure not to use crusher washers, changed out my rail and shaved the gas block, new A2 got installed with crusher and was canting the can down when mounted.
We have two different sizes of QD mounts for our 30 caliber suppressors.
For our full size 30 cal suppressors (YHM-3300 series) you can use any of the YHM-3302 series QD mounts.
The YHM-3300 series can also use any of the YHM-4302 series QD mounts.
Any of the other 30 cal suppressors, including the Nitro, can only use the YHM-4302 series QD mounts.
Any of the YHM 30 cal suppressors can be used on a 5.56 cal rifle because the 5.56 round is so much smaller.
YHM also makes it so that any of the 30 cal suppressors can mount on any of the 5.56 series QD mounts.
A 5.56 suppressor will not fit on a 30 cal series QD mount, however - as a safety precaution.