Check out the "New England Colonial Fowler/Militia Musket" on this page, for a reproduction of a typical militia arm like those being discussed:
http://www.flintlocks.com/rifles04.htm
They often had the fore-end cut back to accommodate a socket bayonet, if one could be had. Most men carried a tomahawk or hanger/cutlass type sword as a side arm. One of the three was required as part of your militia weaponry.