I have a few parts from a dboys M4:
Upper Receiver (Full metal, normal length M4 RIS) + Outer barrel + Inner barrel - £35
Upper Receiver (Full metal, CQB SD RIS) + Flip up frontsight + Inner barrel (300mm) + Metal DBoys hop up unit - £35
Very sorry, this item is no longer for sale - Lower Receiver (Full Metal) - £15
Full Stock (Plastic, can house a large type 8.4 and most likely a 9.6) - £8
Buffer Tube (Full Metal, it has a slot for the wires check picture) - £5
2x Standard M4 Pistol grips - £5
2x Standard M4 Motor plates - £3
Here are some other items for an M4:
APS Battle Tele Stock (Plastic, Nearly new, Original Packaging) - £15
SHS High Torque Long Shaft Motor (As new, used once for testing for about 10 rounds) - £17
Only 1 Left! 2x Standard DBoys Long Shaft Motors - £5 each
Make me offers and ask for a deal if you want to buy more than one thing!
Please note these price are NOT including P&P but that wont be much!
Also I might start to buy in broken guns, strip them down, find out what parts do and don't work and then sell the working parts, what do you think?
**EDIT** To view the pictures please click this link to be redirected to an unlisted page on my team's site.