One piece IMS mount for 30mm Rifle Scopes. Extremely durable lightweight aircraft aluminum. Perfect height and eye relief for AR and Flattop rifles. 4 screws for each ring top that seat into steel inserts. The Mark 4 line takes versatility to the extreme, providing modular components for interchangeable adaptability.

Features:

• Designed to fit Mil-Spec 1913/Picatinny
• Fits 30mm tube
• Matte black finish
• Lightweight 7.9 oz