40MAX 3D Printed Shells

The MegaXL, Hyper Scatter, and Small dart scatter shells all work great and are super fun

The Mega Sniper and Double Mega shells gave me a lot of trouble though, the fit was too tight. I had a lot of trouble getting megas into the Double shell without crunching or bending them and they wouldn’t fly out very far on a full canister.
The Mega Sniper has a different issue, with either the tips popping off the dart or the dart itself bursting along the side of the dart. I got two sets of each shell type just to confirm, and tried different types of mega darts, accustrikes, accufakes, and normal megas and had the same problem. I even tried filling the 40max canisters only halfway, same issue.

Cutting mega darts into half-lengths worked a little better but they’d still break apart after 2 or 3 shots.
All other shell types work great but I’d avoid the Megas.

Having tried all shell types I can say the Mega XL, Hyper scatter, and Short Dart scatter shells work great and are super fun to play with.

However I do not recommend the double mega shell at all, or mega sniper shell unless you’re okay with how finicky it is.
The double mega shell’s fit is too tight, it’s hard to get the darts in without bending or crunching them, and even then the kind of just plopped out with a full 40 max tank.

The Mega Sniper shell is a little better because I can actually fit the darts in, but a full tank will destroy any kind of Mega dart, either by blasting the tips clear off of normal mega darts, or bursting a hole in the side of accustrikes and accufakes. You have to either only fill the tank about halfway and even that is still enough to blow up normal mega darts. I did have better luck with half-length accufakes and accustrikes, luckily. (Half-length standard megas still get their tips blown off, though)