You can buy the ready-to-build boxes with the needed bricks for this design. Assembled by MOC Together in two variations:
You can buy instructions directly from designer. The instructions are NOT included.
Weapon Museum is a modular which consists of two buildings. In the interiors of them there are a stationary and a museum of a weapon history. The modular consists of seven separated moduls which allows seeing the interior without taking off any floors.
You’ll receive the 3450 pieces need to build this modular with interior or the 2430 pieces need to build this modular without interior designed by Brickative, Łukasz Libuszewski.