This is a book or magazine about tanks/AFVs and/or military modeling.
Here's more moe madness, with lithe young honeys paired with serious weaponry! Once you get past the initial shock of seeing scantily clad maidens handling some heavy firepower, you'll find there is actually a lot of good factual information about a wide variety of military and civilian guns. All text is in Japanese, with color and b&w illustrations. Softcover with dust jacket.