ProWin style M4 AR Hopup chamber airsoft

Hop up chamber copy of Prowin with little improvements

- longer protrusion for magazine 0,5 mm longer
- wall where is thread from side is 0,2mm increased because printer cant print soo thin wall
-wall of main tube in front of chamber unit has diameter 12,3 mm because its too thin for 3d print
- hole for arm pin is situated more down for better pressure to hop rubber

like a pin for arm use M2x10 Screw
when BBs doesnt go inside from magazine to chamber, use sandpaper like on photo (i dont want to increase diameter of this part because under this hole is thin wall)

but rest of chamber is like original with 0,05mm precision

3D printing settings

My printer is Creality Ender3 v3 KE
Slicer Creality Print

I print it with PETG
Temperature:
-nozzle 250°C
-bed 95°C first layer, other 90°C

Settings with advancerd mode
Layer:
-First Layer height 0,2mm
-Other 0,1mm

Supports:
- Tree(auto)
- Style organic
- Threshold angle 10
- On build plate only ON
- Remove small overhangs ON
- Support critical regions only ON
delete support area (photo)

rest is deffault

I print it like on photo