A couple of things i noticed that could be improved or changed. First, the oring nozzle is just too weak. first time using it, it broke. i would recommend using the original, or upgrading to a metal nozzle if possible, like i did. my handle broke, right where it meets the c shaped arm. I reprinted with more walls, and so far, its held up. Mag well is a bit loose. i used a piece of thin foam tape and it made it much more solid with less magazine wiggle. this may be an issue only with me, but then putting in the heat inserts, the plastic pushes up higher than the walls. Causing the case not to fit flush. I spent a bit of time shaving these down. Possibly a quick fix would be taking a small amount of material off the opposite screw post in the model, just to remove this step. The wheel cover, I printed in PETG, and it cracked. I superglued it/plastice-welded it back together, and it is holding fine. but if a future issue occurs, i may try and print of of something better.

Printed great and is very sturdy