I purchased the adapters and fitted them to my M32's then to my helmet and they tuck too far inside the helmet so when I put the helmet on one adapter snapped instantly because there's no flex in them like the FMA ones. The adapters are solid which doesn't help
Two tips, use a bit of silicon oil on the battery threads as they can be a little stiff taking on/off. The 2nd is that sometimes the headset won't turn on, this is due to the springs no pushing on the batteries hard enough, just cut out some cardboard and put them under the springs. (they just pull out of the cap)