NOTE: Scale the non chamfered and non filleted one to 2540% in the slicer and scale the filleted and chamfered versions to 1000%, because Sketchup and Autodesk Inventor are just like that sometimes.

This is a modified version of dph720's Airsoft M4 Trigger, which can be found here: https://www.thingiverse.com/thing:4528806
All credit goes to them.

I added some texture to the trigger to make it a little more tacti-cool. Uploaded 3 version, one blocky one, one filleted one, and one chamfered one.

Should fit all standard airsoft M4s. I plan on testing it in my Lancer Tactical lt-19b.

Artillery Sidewinder X1

Doesn't Matter

Yes

200

40

For strongest settings with PLA, I use 40% Gyroid infill (in Cura) with 6 wall lines and 9 top/bottom layers. Print at 210 degrees for better layer adhesion, and a little slower than you normally would for PLA.

Or you can use PETG or Nylon or something like that.