Inline Double Mega XL Silly Shell

Available in rifled and non-rifled versions. I've had the best luck with the non-rifled but your results may vary. Requires higher powered blaster (I did my testing with a Nexus pro x with silly barrel adapter and 200fps spring).

Must cut mega darts. I suggest trimming to 84mm. 

Mega dart cutting jig:  https://www.printables.com/model/1278168-84mm-nerf-mega-xl-cutting-guide

Print Time: <5 Hours @ 300mm/s 

Filament Amount: <50g

Support: No

Bed Adhesion: No    

Increased overall length and slightly increased circumference of the shell to allow for the first dart to fit all the way into the shell.