It is already smokable.
Just because it is a salt form does not render it unsmokable.
has enjoyed smoking MScontin tablets on many an occasion.
That said there are plenty of ways one can freebase it if so desired.
One way would be to make the Morphine
Base which is on here in many threads if one takes the time to have a look around.
SWIM has never actually tried to smoke Morphine base before . . . gives him the inclination to try actually.
MS is dissolved in water.
Calcium Carbonate is added until pH 9.1 is reached.
Morphine will precipitate out of the solution with the Calcium Carbonate.
This leaves Calcium Morphinate (Morphine Base).
precipitant is kept and liquid is discarded.
precipitant is left to dry out.
One would now be left with dry Morphine base.
None of this is necessary, MScontin and Morphine Sulphate IR are both smokable as is. The only problem one can think of that may be encountered is if they are low dosage pills.
Example, a 5mg pill would have a HEAP of inert binders with it. Therefor a CWE and evap could be the answer.
Hope this has been of help
Hope this has helped.