Shield RMSw [Glass]This red dot uses the Shield RMSc footprint standard. The RMSw is designed to resist damage from water or other harsh environmental conditions. The RMS W is gasket sealed to create a watertight fit between the slide and the battery compartment without the need for additional mounting plates. When the sight is mounted it will remain watertight at depths of up to 20 meters for over 30 minutes. The RMS W also features a newly designed frame that adds