Sorry to continue drift but was armorer at my agency when we ran MP5/40 for Narcs & SWAT. Love my issued Commando, but would be happier w my HK buzz gun.
Last time I was at our regional 2-man office they had both an MP5/10 and 1928 Thompson in the safe. Wanted to go shooting, but they can only check them out for operations or scheduled training after SAC pre-approval.
Id be in for SBR MP5/10 SA, in heartbeat.