I know this topic has been discussed here plenty, however I can't seem to properly grasp everything. My question is can I use a standard rifle a2 buffer tube https://www.primaryarms.com/expo-arms-a2-rifle-length-buffer-tube with a h3 carbine buffer https://www.primaryarms.com/noveske-rifleworks-ar-15-carbine-buffer-h3-5-4oz Would I need rifle length 308 buffer spring? I've heard standard carbine buffer tube with orange Sprinco and lr308 buffer is a working setup but would prefer rifle stock vs collapsible. This is all on M5 Aero setup with criterion barrel 16" rifle length gas.