Shield RMSx Red Dot Reflex Mini Sight XL - 4MOA - The RMSx (Reflex Mini-Sight XL Lens) Glass Edition, designed for competitive shooters, features an 80 percent larger toughened glass lens for faster dot acquisition and reduced shot-to-shot times. It maintains the standard SHIELD footprint for compatibility, boasts a new high-efficiency LED, and comes in eight colours with 4MOA, 8MOA or 65/2 Ring and dot sizes. Built on proven electronics, the RMSx upholds SHIELD Sights' reputation for reliability, backed by a sub-1% return rate and a commitment to customer satisfaction Features Mounts to SHIELD's famous footprint; Utilizes SHIELD's patented mechanism, enabling co-witnessing with standard iron sights, considerably reducing training times and costs; The mechanism uses no click adjustment, making it infinitely more accurate when zeroing; Octagon-shaped, crystal-clear lens with no filters to disturb the image of the world through the sight; Machined from aerospace-grade aluminium to extremely precise tolerances while maintaining an attractive, modern-looking optic; Weighing only 28.6g (battery excluded); Auto brightness adjustment, so it can always be on and ready; 20,000 hours in average daylight with a CR2032;