As requested, a remixed design to allow a better fit with free floating tubes AND scaled up by 110% to allow Magpul M-Lok hardware to fit. Slightly more difficult to print though, but not impossible with the right slicer settings. I ended up using a raft and support and it turned out perfect.

Print Settings

Printer:

FLSUN i3 2017 Customized

Rafts: 

Yes

Supports:

Yes

Resolution: 

.3

Infill:

40%

Filament:

CC3D PLA+

Black

Notes:

If you don't like the curved cutout, just scale the original source STL 110% and that should work for Magpul M-Lok hardware fittings.

Remix Source:

https://www.thingiverse.com/thing:3527381

Category: Sport & Outdoors