The Outdoor "Sport-Dot" Picatinny Rail Adapter is a simple riser for mounting battery-free fiber-optic reflex sights on foam-dart "nerf" blasters or airsoft replicas. Featuring a faux shotgun rib to mount the sight and a single M3 screw, this sight is perfect for outdoor games where you need a no-fuss sight picture as a reference point to make your tags.

I am thoroughly impressed with how well this sight works when adapted to Picatinny. It even works alright indoors as long as the space is well-lit (your mileage may vary depending on the fiber-optic color, lighting conditions, and quality of the sight). The "Toopmount" model I used from Amazon also had some rudimentary elevation adjustment, and tweaking the grub screws mounting to the faux-rib could easily adjust windage with some finesse. At around 200 FPS or lower, the dart drop is significant enough to need a 3-degree riser, but blasters at higher velocities may not need it.  

FEATURES:
• Outdoor "Sport-Dot" Sight Adapter
• Shotgun Rib to Picatinny rail adapter
• Designed for inexpensive fiber-optic reflex sights
• No batteries required!
• Semi-fixed sight (rudementary adjustment depends on model)
• Designed to mimic 5-10mm wide ventilated rib
• Requires Picatinny Rail at least 150mm long

FILES INCLUDED:
• 1 Sport-Dot Sight Adapter with 3-Degree rise (recommended)
• 1 Sport-Dot Sight Adapter, flat/no-rise*

*Note: No-rise adapter 3MF has only been tested once and has no saved print settings

RECOMMENDED PRINT SETTINGS:
• Quality: No scarf seams or joints
• Strength: At least 3 wall loops, 20% Infill
• Supports: Tree (manual), painted on left side of rib
• Others: Optional outer brim for better bed adhesion

HARDWARE NEEDED: 
• 1 Outdoor Sport-Dot Sight (this is the one I used)
• 1 M3x4x5mm "Voron-Spec" Heat-Set Insert
• 1 M3 x 30mm Thumbscrew