Hi John,
Pardon my ignorance but do the extensions attach to the gun or the magazines? If its the magazine, I guess I would need two instead of one, correct? Also, does the natural (aluminum) match the slide color of the standard R9? Are there any pics of a standard R9 with the black extension? Does the hook extension interfere with concealment/draw? Does it change it in any way? Standard holster still work with it?
Sorry for all the questions...