See-Thru Detachable Rings - Extension Combine versatility and precision with Weaver's See-Thru Detachable Rings - Extension. Designed for hunters and shooters who demand flexibility, these rings allow seamless switching between iron sights and a scope for fast, accurate target acquisition. The extension design provides optimal scope positioning while maintaining a secure and reliable fit. Key Features: Dual Sight Options: Use iron sights or your scope for quick and flexible target acquisition. Extended Design: Provides enhanced scope positioning for improved eye relief. Rock-Solid Security: Squared cross-lock bolt ensures a tight, secure fit with Weaver Top Mount Bases. Proudly Made in the USA: Built with precision to deliver unmatched quality and reliability. Weaver Recommended Torque Specs Cap Screws: 15 in lbs Crossbolt: 35 in lbs Instruction Manual