From the article:
“Marine officials would not discuss the individual price for each new pistol. But the $22.5 million contract to Colt will allow the Corps to buy replacements for the new pistols as they wear out, Clark said. The contract also includes some money for spare parts.
“The contract is built so we can re-buy the approved acquisitions objective three times, so we can buy 4,000 guns three times,” Clark said. “These pistols will be getting used a lot; deployed a lot so the guns are going to get shot out.””
Now it makes sense.
I can buy that and don’t know why I didn’t think about armory costs.