The RMSw is engineered to withstand water and harsh environmental conditions with its gasket-sealed design, ensuring a watertight fit between the slide and battery compartment without additional mounting plates. Once mounted, it maintains watertight integrity at depths up to 20 m for over 30 min. Featuring a newly designed frame for added housing thickness and a revised side profile, the RMSw incorporates a newly developed hard-coated polymer lens for enhanced durability. It retains the same footprint as previous Shield mini sights, ensuring compatibility with slides already cut for RMS, RMS-C, SMS or Jpoint models.