Based on the description of the Ares Crusader II on p252 (bottom right) which says it comes with Gas Vent (500) and Smartgun System (200 or 500) I would expect the cost to be 1200-1500 or so, not the 520 as shown in the Machine Pistol table on p254. I mean, in game, I can totally see Ares trying to undercut the competition to corner the market, but this seems like a mistype or something like that. To get the bargain Machine Pistol equally equipped would put the total cost of gun+accessories to 1210 (top mounted Smartgun) or 1510 (internal Smartgun).