This is the same with many modern optics.
Whats the Big Difference?
Shield Sights has a line of miniature and micro red dots, from theultra-small RMScto the standard RMS.
A big window and compact footprint are two of the defining features of the new Shield RMSx reviewed by the author.
Much like its cellular phone counterparts, the smaller you go, the less window or screen you have.
To be exact, this new design gives you an 80% more viewable window.
And the hard dip coating on the acrylic lens is going to give you great clarity and durability.
To test the Shield RMSx, the author mounted it to a Springfield XD-M Elite pistol (shown) as well as a Hellcat.
However, up close that 8 MOA size is very tempting for ultra-fast engagements.
I found the overall design of the optic window to be quite nice for quick target alignment.
This is where it begins to angle toward the center.
Hornady Critical Defense is considered to be excellent defensive ammo. It performed flawlessly in the RMSx testing.
Mounting It Up, Zero In
Installing with the RMSx is much like other Shield optics.
For the XD-M, you will need to use the appropriate plate per the Shield footprint.
When it came to mounting to the Hellcat Pro, it was a direct mount to slide.
Along with the RMSx red dot, the author had the reliable Streamlight TLR-1 HL weapon light mounted to the test pistol.
After mounting, zeroing is quite easy.
Competitive shooters need every advantage they can get since time can literally be money in their line of work.
The author tested the 4 MOA version of the RMSx red dot optic. He found the larger window made it easier to find the dot quickly.
Shield includes a tool for adjusting the red dot. For sighting in the optic, it proved to be very helpful.
The suppressor-height sights on the XD-M Elite allow for a co-witness through the Shield RMSx window.
The Shield RMSx sight has a “trench” in the rear of the body to better allow for the use of standard sights as a backup to the red dot.
