MTW Feed Tube Extended Feed Tube
thingiverse
Found that Drunknape's improved mag compatibility from the stock feed tube, but would not release the BBs on some of my mags (Maple Armouries PMAGs and Specna Mid Caps) so I extended the feed tube by 1mm.
Download Model from thingiverse
With this file you will be able to print MTW Feed Tube Extended Feed Tube with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on MTW Feed Tube Extended Feed Tube.