As @Tasbay mentioned, P is different...but it strikes me as complete numpty taht if you have a P endorsed semi auto SLR (as an example) and a C endorsed full auto capable SLR you can keep the parts for the full auto on site but not the semi auto.......the sheer muppertry of the twats boggles the mind....
If you are he sort of person who can get the endorsment to start with then you have proven yourself lawabiding and are not the sort of person who would break rules. Thus not the cort of person who will commit crimes with said bang sticks anyway....
Bookmarks