Originally Posted by Ronan
Ah... i thought upper and lower are a no no...
Edit: wait so since the lower and grip is once peice (if i understand this), it means that this time it was ok?
You need to look at what the controlled part of the firearm is to make that determination.
In Canada, control is determined by serial numbers.
In the case of the MP5, the upper is what carries the serial number, and as a result, is what is controlled - not the lower.