>>64079278
The trigger meant for full auto bit has to do with the TMP/SPP having a progressive trigger like the aug where little pull = semi, big pull = auto. MP9/TP9 did away with this, trigger just sucks because its a weird mechanism to fit into the gun. The giggigilitototi or however the fuck its spelled rifle works trigger is a huge improvement for the semi TP9, it doesnt work in selectfire guns though so into the trash it went.
>Overbuilt
Idk ive got a selectfire MP9 and its for sure just barely holding on. The gen 2 vented can I have is way nicer than the original fully sealed design but despite it looking chonk, its just aluminum.