One of my club mates has access to a MakerBot 3D printer and offered to print off anything I'd like, so I when I found a design for forend for the TM M870 Breacher on thingiverse.com I had to take him up on the offer.
3D Printed Tokyo Marui M870 Breacher Forend
Duration: 1:55
3D Printed Tokyo Marui M870 Breacher Forend