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AR15 RUBBER BAND GUN (MLOK, CUSTOMIZABLE)

πŸ”« 3D models of guns or weapons are dummy objects or prop toys and have no real functionality as weapons. They are intended for entertainment or decorative purposes only. For any design violating our T&Cs, please report them.

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Creation quality: 4.4/5 (7 votes)
Evaluation of members on the printability, utility, level of detail, etc.

  • 24.2k views
  • 75 likes
  • 112 downloads
  • 1 collection
  • 2 comments
  • 2 makes

License
3D design format
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  • ar15_rubberbandgun.zip

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Publication date 2021-08-23 at 10:19
Design number 501697

GeneralPurpose

3D printer file info

3D model description

1:1 scale AR15 style semi auto Rubber band gun
printing, assembly, function in youtube video
(https://youtu.be/yIjpaYlpSaI)

Materials needed for assembly
M4x20mm bolt : 12ea
M4 nut : 8ea
7x12mm spring : 4ea
3x10mm spring : 1ea (or ar15 selector detent spring)
a rubber band
(it's a recommendation, just use anything that fits)

70x1.5mm(common one) and 70x3mm band will both work
70x3mm will work better and is more powerful
but i only tested it up to 5 rounds
70x1.5mm will sometimes jam, but 10rounds testing was ok

if you experience double fire or frequent jam,
tighten or loosen the screw holding the disconnector


Safety first
Installing a bolt at the gear axis is essential for the part strength!!
Strength of the parts will vary by the filament and printer setting,
so handle with caution

Tolerance
0.3mm or more for moving parts, 0.2mm for fixed parts
use supports

3D printing settings

0.2mm layer with support worked fine
I used pla with 30~50% infill
Use higher infill for gear, trigger, disconnector

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