this post was submitted on 19 Nov 2025
21 points (100.0% liked)
General Discussion
424 readers
97 users here now
Discuss anything GunCAD related. If you need help, see /c/help. If you think you're discussing a thing a lot of the time, consider making your own separate community.
Abide by the global rules or be smitten.
Shitty stock image may be changed at moderator discretion.
founded 2 months ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
seems like the safety is blocking the trigger from fully coming down thuus pushing the sear/trigger block back to disengage/disconnect the hammer. im guessing the tumbler is supposed to roll back to allow the trigger to come down far enough ? what am i missing here ? will the mpa9mm safety selector work ?
outside of that, the build is complete.. i the meantime i can range test without the safety installed.
re: safety tumbler.
firured out the safety issue. the sear and trigger bar were not correctly installed.
now need to print another charging handle. i would say plastic charging handles are not it. will have to order a metal ch.
You can absolutely print a charging handle, but it has to be nylon.