Upgrade your scope adjustments with easy-to-use, high-quality printed knobs.

This project includes three external diameters:

• 11 mm
• 20 mm
• 30 mm

Designed mainly for Primary Arms SLx series, but they should also fit most scopes that use a coin-slot adjustment screw.

Why use these knobs?

• ✔ Faster and easier adjustments
• ✔ No need for a coin or screwdriver
• ✔ Better grip, even with gloves
• ✔ Clean and professional look

Perfect for range shooting, air rifles, .22LR trainers, or any optic with a cross coin slot.

Print Quality

• Material: PETG (strong and temperature resistant)
• Layer height: 0.12 mm (high quality setting)
• Durable and precise fit

The design is simple, lightweight, and practical. Just press-fit onto your existing adjustment screw and enjoy tool-free adjustments.

If you like practical upgrades for your gear, this is a small print that makes a big difference.

Happy printing! 🎯