No, it is;
Barrel: 32mm pvc pipe
Nozzle: valve socket, disc of plasticard, brass tube (actually a .45 cartridge), four aln bolts
Sight: section cut from same material as stock, flathead driver bit
Front sling attachment: female part of a door bolt, ring from a handbag
Fins: not sure, I think was some sliding door track or something like that
Folding stock: aluminium bar for the arms, a section of that stuff with all the slits in you use for hanging shelves, cover from a set of gas torch reamers
Magazine: plastic box that originally held business cards I think. Housing is made from plasticard and the cap from a USB stick. Greebly behind is part of a cupboard door latch
Trigger is a coat hook, guard is steel strip
Grip is a plane handle, safety is a bit out of a clock
Sight: $2 shop monocular, plastic plumbing fitting (reducer I think), knurled plastic knob off something or other
Sight rail: aluminium bar stock, the handy z-brackets came from some bit of audio equipment I think. I could just as easily made the whole thing from bit of bar, but used the brackets because I had them.
Butt cap: plastic end cap meant for pvc pipe, berocca tube lid, and rear sling attachment same as front
Cocking lever: plasytic trigger from the mauser that I'm using for the DL-44
Greeblies at the rear of the barrel are two bits out of a clock, greeblies underneath are two useful bits I found with one flat surface, the other concave. I think they might have been from the same source as the z-brackets, possibly speaker brackets