Primary Arms MRSC 21mm Micro Reflex Sight – Green Dot

The Primary Arms MRSC Micro Reflex Sight is designed for shooters who carry compact and micro-compact pistols and want a slim, reliable red dot that keeps up with everyday use. Its 21mm lens keeps the footprint tight so there's no overhang on smaller slides, making it a great choice for concealed carry setups where profile matters.

This reflex sight houses a bottom-mounted CR2032 battery and uses AutoLive technology, which powers the reticle off when the pistol is at rest and instantly wakes it up at the slightest motion, extending battery life without you ever having to think about it. The lens is fully multicoated for scratch and fog resistance, and the housing is machined from 6061 aluminum for durability that holds up to daily carry and range use. It runs on the RMSc footprint, giving you a wide range of milled slide and adapter plate options for mounting.

Key Specifications

• Magnification: 1x
• Objective Lens: 21mm
• Reticle: 3 MOA Green Dot
• Illumination Settings: 10 total, including AutoLive motion activation
• Battery Life: Up to 40,000 hours on medium setting
• Battery Type: Bottom-mounted CR2032
• Housing Material: 6061 Aluminum
• Mounting Footprint: RMSc
• Lens Coating: Fully multicoated for scratch and fog resistance

Ideal for concealed carry shooters who want a slim, dependable red dot with battery-saving smarts built in, the Primary Arms MRSC Micro Reflex Sight for sale at Loftus Firearms.