First 3D Print Build (PA6-CF) – Slide Sticking Out of Battery, Light Primer Strikes, & Mag Release Drag

Hey everyone,

I just finished my very first build using PA6-CF, but I’m running into a few issues during testing and my first range trip. Hoping to get some troubleshooting advice from the community please.

Issues I'm Experiencing:

Mag Release Drag:

The magazine release catches on the magazine during insertion, making it stick and not insert every once in a while.

Slide Sticking & Staying Out of Battery:

The slide feels like it's dragging or rubbing against something internal when racking. Attempting a press check leaves the slide out of battery.

Range Test: Every single round fired leaves the slide out of battery instead of returning smoothly.

Trigger / Firing Issues:

Every few rounds, is either a light primer strike or a dead trigger. Also, one round seem to get scratched ortorn by something

Questions / Request: Has anyone seen similar binding issues with PA6-CF builds (is it warping, channel/rail clearance, or shrinkage)?

Could the slide staying out of battery and the light primer strikes/dead trigger be directly related to rail alignment, recoil spring weight, or trigger bar binding?

Any tips on where to start.... sanding, checking tolerances, or troubleshooting would be greatly appreciated!