ITEM DOES NOT INCLUDE A MAGAZINE.
The Caliburn is a Mag-Fed Pump-Action Homemade Blaster design released as an Open Source Non-Commercial
license file set by Captain Slug. This is the full set of parts and hardware for a single blaster and will require only minimal assembly.
It is compatible with official Hasbro HIR ammo, but aftermarket ammo of the same type might be unreliable given their wider diameter distribution.
These are fully-functional blasters that have been assembled, tested, then disassembled partway for shipping.
Color Configurator: http://www.captainslug.com/nerf/caliburn/r/