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Iron Sights for Sillybutts Excalibur — image 1
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Iron Sights for Sillybutts Excalibur

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Fixed sights for Nerf blasters (Sillybutts Excalibur). Front sight features a small aperture for longer shots.

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Model information

License
Creative Commons — Attribution

Designed for a Sillybutts' Excalibur built using Out of Darts hardware kit (12" barrel, K31 spring).

Each sight uses a single M3x25 socket head cap screw, to be driven directly into plastic (no tap or heat-set insert required, but be careful when tightening). 

Use a 3mm or 1/8" drill bit to open the thru hole on the countersink. The M3 screw shaft should pass freely through the countersink side. 

Print both sights with the flat, front-facing surface on the build plate. 

Front and Rear Sight:
Layer height: 0.2mm
Perimeters: 5
Horizontal shells: 4 (top and bottom)
Infill: 15% gyroid
Brim: none

Note: Rear sight does not need supports, but a painted organic support enforcer for the small bridge/overhang in the skeletonized triangle results in a slightly cleaner bridge.

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