What Makes Cross Armory CRRMADAPTER Adapter Plate Black Oxide Aluminum Compatible W/ RMR O Stand Out?
The Cross Armory CRRMADAPTER Adapter Plate Black Oxide Aluminum Compatible W/ RMR O offers a solution for shooters wanting to mount a popular RMR (Ruggedized Miniature Reflex) optic onto a pistol slide originally cut for the smaller RMSC (Shield RMSc) footprint. This adapter provides versatility, allowing users to expand their optic options without costly slide modifications. It’s a simple, effective, and relatively inexpensive upgrade, manufactured by Cross Armory.
My pursuit of this adapter stemmed from a new pistol purchase. I acquired a pistol that came factory-milled for an RMSC optic, but my preferred optic is a Trijicon RMR. The Cross Armory CRRMADAPTER Adapter Plate presented a straightforward solution.
Upon unboxing, I was immediately impressed with the adapter plate’s solid feel. The black oxide finish on the aluminum seemed durable and well-applied, suggesting it could withstand regular use. The weight felt negligible, a crucial factor for maintaining the pistol’s balance.
Alternatives considered were having the slide milled to accommodate the RMR directly, or purchasing a new slide altogether. Both options were significantly more expensive and time-consuming. The Cross Armory CRRMADAPTER offered a cost-effective, drop-in alternative.
My initial impression was positive. It seemed to be a well-made, functional piece, and I was eager to test its compatibility and performance. I was particularly happy that it included screws with pre-applied loctite.
Real-World Testing: Putting Cross Armory CRRMADAPTER Adapter Plate Black Oxide Aluminum Compatible W/ RMR O to the Test
First Use Experience
My first test of the Cross Armory CRRMADAPTER Adapter Plate was at an indoor shooting range. I wanted a controlled environment to assess the adapter’s impact on accuracy and zero retention. The pistol was chambered in 9mm and I was using standard 115 grain FMJ ammunition.
The installation was straightforward, using the provided screws with pre-applied Loctite. I had no issues mounting the adapter plate and subsequently attaching my Trijicon RMR. After initial zeroing, I fired approximately 200 rounds.
The adapter held up surprisingly well; there were no signs of shifting or loosening. However, I noticed a slight increase in the overall height of the optic, which required a minor adjustment to my cheek weld.
Extended Use & Reliability
Over the following months, I subjected the Cross Armory CRRMADAPTER Adapter Plate to more rigorous testing. I used it during several outdoor range sessions, as well as in a defensive pistol course. The weather conditions varied from sunny and dry to damp and cool.
After approximately 1000 rounds, I re-checked the screws and found them to be secure. There were no visible signs of wear and tear on the adapter plate itself. Cleaning was simple; a quick wipe-down with a gun cleaning solvent was sufficient.
Compared to using a slide milled directly for an RMR, the adapter solution felt just as reliable. The added height was a negligible tradeoff for the ease of installation and cost savings. I would feel confident relying on this setup for defensive purposes.
Breaking Down the Features of Cross Armory CRRMADAPTER Adapter Plate Black Oxide Aluminum Compatible W/ RMR O
Specifications
The Cross Armory CRRMADAPTER Adapter Plate Black Oxide Aluminum Compatible W/ RMR O is CNC machined from aerospace-grade aluminum. It features a black oxide finish for corrosion resistance. The adapter is designed to convert a pistol slide with an RMSC optic cut to accept an RMR footprint optic.
It is compatible with various RMR footprint optics, including Trijicon RMR/SRO, Holosun 407c/507c/508t/509t/EPS, and any other RMR-compatible optic. The package includes screws with pre-applied Loctite for secure mounting. The ultra-low profile and lightweight design are intended to minimize impact on the pistol’s balance and handling.
These specifications are critical because they directly impact the adapter’s durability, compatibility, and overall effectiveness. The aluminum construction ensures it can withstand recoil forces, while the black oxide finish provides protection against rust and wear. Compatibility with a wide range of RMR optics makes it a versatile choice.
Performance & Functionality
The Cross Armory CRRMADAPTER Adapter Plate performs its primary function exceptionally well: bridging the gap between an RMSC slide cut and an RMR optic. Accuracy was not negatively affected, and the RMR maintained its zero throughout testing. The adapter proved to be reliable under various conditions.
Its strength lies in its simplicity and effectiveness. The only potential weakness is the added height, which might not be ideal for all shooters. However, the overall performance exceeded expectations, especially considering the price point.
Design & Ergonomics
The Cross Armory CRRMADAPTER Adapter Plate is a minimalist design. The aerospace-grade aluminum gives a solid build quality without adding excessive weight. The adapter’s low-profile design minimizes the added height of the optic.
The installation is simple and requires no special tools. The only learning curve is ensuring proper screw tightening and Loctite application.
Durability & Maintenance
The aerospace-grade aluminum construction and black oxide finish suggest excellent long-term durability. During my testing, I encountered no signs of wear or corrosion.
Maintenance is minimal, requiring only occasional cleaning and screw tightening. The simple design makes it easy to inspect and maintain.
Accessories and Customization Options
The Cross Armory CRRMADAPTER Adapter Plate comes with the necessary screws for mounting to the slide. The primary customization is the choice of RMR footprint optic to mount on top.
The adapter is compatible with any RMR footprint optic. This provides users with a wide range of choices based on their budget and preferences.
Pros and Cons of Cross Armory CRRMADAPTER Adapter Plate Black Oxide Aluminum Compatible W/ RMR O
Pros
- Simple and effective solution for mounting RMR optics on RMSC-cut slides.
- CNC machined from aerospace-grade aluminum with a durable black oxide finish.
- Wide compatibility with various RMR footprint optics.
- Easy to install with included screws and pre-applied Loctite.
- Cost-effective alternative to slide milling or replacement.
Cons
- Adds slight height to the optic, which may affect cheek weld.
- Requires careful screw tightening and monitoring for optimal performance.
Who Should Buy Cross Armory CRRMADAPTER Adapter Plate Black Oxide Aluminum Compatible W/ RMR O?
Perfect for: Gun owners who have a pistol with an RMSC optic cut but prefer to use an RMR footprint optic. It’s also ideal for shooters looking for a cost-effective and easy-to-install solution. This adapter is a good choice for individuals who are comfortable with basic firearm maintenance and are looking to expand their optic options.
Who should skip this product? Shooters who are highly sensitive to changes in optic height or those who prefer a direct slide mount for aesthetic or performance reasons. Those uncomfortable with basic firearm disassembly and reassembly might also find this product challenging.
Must-have accessories or modifications? A high-quality RMR footprint optic, such as a Trijicon RMR or Holosun 507c. Also, consider a torque wrench for precise screw tightening.
Conclusion on Cross Armory CRRMADAPTER Adapter Plate Black Oxide Aluminum Compatible W/ RMR O
The Cross Armory CRRMADAPTER Adapter Plate Black Oxide Aluminum Compatible W/ RMR O is a practical and reliable solution for shooters who need to adapt an RMSC-cut slide to accommodate an RMR optic. The aluminum construction and black oxide finish provide durability, while the simple design ensures ease of installation. The added height is a minor trade-off for the versatility and cost savings it provides.
The price is definitely justified, especially when compared to alternatives like slide milling or replacement. The Cross Armory CRRMADAPTER offers excellent value for the money.
I would personally recommend this adapter to anyone in need of a simple and effective way to mount an RMR optic to an RMSC-cut slide. Its reliability, ease of use, and affordable price make it a worthwhile investment. Upgrade your pistol today and experience the versatility of RMR optics!