Tune up the barrel band screw to add functionality and style!  
 
The stainless matches both black and silver barrel bands, and is corrosion resistant. Allen head (hex) installs easily and consistently.  Also includes stainless steel nut and 22LR dummy rounds (both not in photo).
 
The blued alloy steel has with an allen head recess, and works as a replacement to the factory barrel band screw.  Includes stainless steel nut and 22LR dummy rounds (both not in photo).