I did mention in Books about an author who had his Mitch Rapp clone move his fully auto AR-15 to semimanual. BTW, listening to a Stephen King assassin who is really a good guy book and how he puts a silencer (called a potato) on a Ruger GP-100. It does blow up when used. Not a real potato. Billy Summers is the book. No major supernatural antics except for a passing by of the Overlook.