The Weaver Modular Level System is the ultimate tool for ensuring that your scope's crosshairs are perfectly aligned with the receiver. This straightforward yet highly effective system is essential for precision shooting and improved accuracy. Key Features: Precision Alignment: Guarantees your scope's crosshairs are level to the receiver for consistent, accurate shots. User-Friendly Design: Simple to use, making it ideal for both beginners and experienced gunsmiths. Secure Magnetic Grip: High-strength magnets securely hold the system in place during adjustments. Proudly Made in the USA: Precision-manufactured for superior quality and reliability.