MLOK standard attachment. A strong, minimalist loop for a mashhook, HK snaphook, or a loop of paracord for sling attachment.
Fitment was tested on a ‘real steel’ handguard. The hardware I used for testing and fitment was taken from a QD socket I had laying around. As with anything hardware, bolt head dimensions may vary depending on vendor.
PLA+ should be plenty strong for this. Nylon or PETG would probably be ok as well, but I have not tested those two materials.
See slicer screen shot for support and orientation - It's kind of important to orient this standing like pictured, this way the loop sections layer lines are solid loops to prevent pulling it apart at one of the layers.
The author marked this model as their own original creation.