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AAP-01 Adjustable Rotary Hop-Up Chamber

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Creation quality: 5.0/5 (1 vote)
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  • 3.4k views
  • 16 likes
  • 22 downloads
  • 1 comment

License
3D design format
STL Folder details Close
  • hopup5.0.stl

Learn more about the formats

3D model size X 181 Γ— Y 63.1 Γ— Z 20.4 mm
Publication date 2023-07-03 at 04:09
Design number 1303664

3D printer file info

3D model description

AAP-01 Adjustable Rotary Hop-Up Chamber

Simply separate upper and lower receiver then adjust the rotary dial. You will need a short piece of wire and 2 m3 metric square nuts that measure 5.5mm across the flats. Feel free to contact me with any questions or comments.

Square nuts at Amazon:
https://www.amazon.com/gp/product/B075V93T7Z/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

Square nuts are not required for part to work but should be used

Assembly/Demonstration vid on Youtube:
https://youtu.be/XgSUsjGEuEc

If you are having trouble with over hoping, sand the part of the hop up arm that makes contact with the bucking. I can hop .4 gram bbs without a problem.
Enjoy!

3D printing settings

100% infill

See pics for printing orientations

You will need supports

PLA works well

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