EDIT: I've been told Castpaw Customs is no longer trading and the sale of these bases will soon be handled by BrickArms. That's good news because these bases are far too nice to disappear from the marketplace.
A lot of the companies out there not only offer weapons, and in many periods, but also helmets, body armor, equipment, etc. I’ll cover some of the accessories in a future update, but I wanted to focus this time on weapons. More specifically... modern weapons. There are four main sellers I get my stuff from and each one not only carries a wide variety and selection, but the level of customer service and satisfaction is excellent. As a consumer, that’s important!
BrickArms has a very good selection of modern era weapons as well, though I’ve found that they’re hit and miss for size sometimes. I’ve had a couple I ordered that I thought were going to be bigger but looked decidedly small in my minfig’s hand. That aside, they have a GREAT variety of pulp era weapons to choose from. Lugars, Broomhandle Mausers, BARs, Revolvers, etc. Perfect for anyone wanting to do gaming in the pulp period.
" Thinking of getting some kind of ready-made, no paint required, re-customizable toy army. I love the idea of arming each figure with an array of weapons, changing them, or making whatever the heck I want (and well lead figs just aren't so accommodating to my never ending whims. Nor are plastic ones, but they are slightly better). The Playmobil figures are bigger, which I like however the minifigs have a greater variety of things to wield as well as helmets and faces, etc." - ETeneibrisLux, The Miniatures Page, 2008