Thought maybe we could start an MP5 thread... I'll start.

This is my POF MP5. Ex SBV gun, carried a lot but seems to have barely been shot.

I have done a lot of work to it namely:

Midwest Industries M-Lok Rail
Samson Short Vertical Grip
SEF Plastic Grip Module (replacing the steel grip module)
Magpul Safety Selectors
Revolutionary Roller Locks ACR Stock Adaptor
Magpul ACR Stock

Still to fit:

B&T Ultralow Mount
Sig Romeo 5

Still to buy:

Timney MP5 Trigger (Awaiting it's release)
Haga Defense MP5 Magwell
Cerakote in HK Grey