FlipMount™ 39 mm - Top ringRing only - requires TwistMount™ base

The Aimpoint® FlipMount™ is a quick attach/detach mount that quick and easy can be flipped in or out of the optical axis. The FlipMount™ is designed primarily for use with AIMPOINT magnifiers but can also be used to mount other optical equipment with a 30 mm tube. The FlipMount™ is available in two different heights to accommodate various sight mounts, and with or without included TwistMount™ base.

This is a FlipMount™ Top ring, that together with the needed TwistMount™ base gives a mounting solution with a 39 mm / 1.5 in optical axis.