Description
3D Thumb Rest for STI – Left Side for Right-Hand Shooter
The Toni System 3D thumb rest for STI pistols is designed specifically for right-handed shooters, with mounting on the left side of the firearm. This accessory is IPSC Standard legal, engineered to enhance grip and control during dynamic shooting competitions.
The diamond-shaped design ensures that the firearm can be safely unloaded without obstruction, while allowing a natural and secure finger position. Its clamshell-shaped support base, angled laterally at 45°, adapts to the shooter’s anatomy for maximum comfort and efficiency.
Featuring a support surface of 21×14 mm and a 40° inclination, it provides stable thumb positioning to reduce recoil management fatigue. The hole spacing is 9.5 mm, and screws are included in the package (may require adaptation depending on the firearm).
3D Thumb Rest for STI key features:
• Designed for STI pistols
• Mounts on the left side (for right-handed shooters)
• IPSC Standard compliant
• Diamond shape allows easy weapon unloading
• Support surface: 21 x 14 mm
• Vertical inclination: 40°
• Lateral angle: 45° (clamshell-shaped)
• Hole spacing: 9.5 mm
• Mounting screws included (may need adjustment)
Video by Toni System
Technical specifications
- Item code: AD3DSXSTI
- Weight: 13.3 g
Compatibility
- 2011




















