Lasers are good and can come in quite handy.
Same with bayonets, quite useful.
Pocket guns are compact and can make up for their recoil and capacity and caliber issues by presenting accessibility.
JayG, of course, combines all three.
Edit: Updated by talking with Jay on GBC
[22:54] <+The_Jack> Jay, you should get some 22 cal shotshell
[22:54] <+The_Jack> You can market the "Micro judge"
[22:54] * +JayG *has* 22LR shotshells...
[22:55] <+JayG> ...
[22:55] <+JayG> The_Jack, you are a genius
[22:55] <+JayG> an evil, evil genius