Shield Sights RMSc Review

Shield Sights RMSc Review


I’d been wanting to add a red dot sight to my concealed carry pistol for a while. Faster target acquisition, improved accuracy, especially in less-than-ideal lighting – all that sounded pretty appealing. But for my micro-compact Glock 43X, many red dots felt bulky and cumbersome. Enter the Shield RMSc. This little red dot sight has been getting a lot of buzz, and for good reason. Here’s a breakdown of my experience with the RMSc.

Best Features and Everyday Use

Right off the bat, the RMSc’s size is its biggest selling point. It’s incredibly low-profile, disappearing almost entirely onto the slide of my G43X. This translates to minimal printing when carrying concealed, which is exactly what I was looking for. Another perk is the ability to co-witness the iron sights. While the red dot is the primary aiming point, having the irons as a backup if the battery dies or the sight malfunctions provides peace of mind.

The RMSc uses a single CR2032 battery, which the company claims offers a three-year lifespan. Battery changes are a breeze – pop off the cap with a coin, swap the battery, and you’re good to go. Speaking of ease of use, the brightness controls are conveniently located on the side of the sight. They’re easy to manipulate even with gloved hands, allowing for quick adjustments based on lighting conditions.

Now, let’s talk about the dot itself. The RMSc comes in either a 4 MOA or 8 MOA dot configuration. I opted for the 4 MOA, finding it to be a good balance between fast acquisition and precision aiming. The dot is crisp and clear, with excellent visibility indoors and outdoors.

Durability and Reliability

While the RMSc boasts an aircraft-grade aluminum housing, some folks online have questioned its durability compared to more robust red dot options. To be honest, I haven’t put mine through any extreme torture tests, but for everyday carry and range use, it feels solid. There are also optional armor hood kits available for those who want some extra protection for the lens.

Here’s where things get interesting. Online forums and communities have mixed reviews on the RMSc’s durability. Some users rave about its ability to withstand drops and bumps, while others have expressed concerns after subjecting their sights to more rigorous testing. For me, real-world reliability is key. I haven’t experienced any issues with the sight maintaining zero after firing hundreds of rounds at the range. That being said, if you’re looking for an optic for competition shooting or high-impact situations, you might want to consider a heavier-duty red dot.

The Final Verdict

The Shield RMSc has become an integral part of my concealed carry setup. Its compact size, clear dot, and easy operation make it a great option for micro-compact pistols. While questions linger about ultimate durability, for everyday carry and range use, it’s a winner.

Alternatives and Compatibility

If you’re looking for a similar footprint but prioritize bomb-proof construction, the Holosun 407K and 507K are popular choices, albeit slightly larger and heavier. Another option is the Swampfox Sentinel, known for its durability at a competitive price point.

The RMSc boasts a wide range of compatibility. It fits directly onto many popular optics-ready pistols like the Springfield Hellcat OSP, SIG SAUER P320 series, and several Glock models. Do your research to ensure a perfect fit for your specific firearm.

Overall, the Shield RMSc is a compelling option for those seeking a low-profile, user-friendly red dot sight for their concealed carry pistol. Its size, performance, and ease of use make it a great choice for everyday carry and range use. If ultimate durability is your top concern, there are some worthy alternatives. But for a balance of size, function, and everyday reliability, the Shield RMSc has definitely earned a spot on my Glock.