The RMSsc is Shield Sight&';s smallest and most concealable red dot sight. It features the narrowest profile and incorporates their all-new glass lens from the AMSc, compacted into a sleek, minimal design, while still fitting to the standard SHIELD footprint.Features : Red light emitting diode (LED) Parallax-free Crystal Clear 1x Hard Dip Coated Acrylic Lens Lowest Brightness- Compatible with Night Vision 4 MOA Standard Shield Footprint Aluminum Construction