This has got me thinking about the extent of what trinkets can do and if might not be somewhat unbalanced, I would ask someone to correct me if I'm mistaken, but is this a valid RAW creation of a trinket?

A gun for example, as per M20 How Do You Do That's “Locked” Quirks of Physics (pg. 31), "Locking a Forces Effect onto a person, for instance, would also demand Life 4, while investing it into a jacket would also require Matter 2 or higher." Leading to the fair assumption Matter 3, as has been evidenced before throughout the book, is necessary to lock an effect to something...