First Impressions of L2D Combat Co-Witness/Suppressor Fiber Optic Sight Set Sig P320 9mm / 40SW
The L2D Combat Co-Witness/Suppressor Fiber Optic Sight Set Sig P320 9mm / 40SW promises enhanced target acquisition and seamless integration with red dot optics and suppressors. As someone who’s run a Sig P320 through countless drills, competitions, and even a few hairy situations, I’m always on the lookout for upgrades that genuinely improve performance. The raised height, fiber optic sights, and L2D Combat‘s reputation for quality piqued my interest immediately, promising a superior sight picture in diverse lighting conditions and the ability to effectively co-witness with a red dot.
I was looking to solve a persistent problem: inconsistent sight acquisition in low light when using my P320 with a red dot. Factory sights were too low to provide a reliable backup, and standard aftermarket sights didn’t offer the ideal height for suppressor use either. After researching various options, the L2D Combat set seemed to offer the best balance of functionality, durability, and value.
The package arrived well-protected. Pulling the sights from their packaging, I was immediately impressed by the solid feel of the 17-4 stainless steel. The black nitride finish gave them a sleek, professional look, and the fiber optic filaments appeared bright and vibrant. Compared to the factory Sig sights, or even some of the other aftermarket options I’ve tried, these felt noticeably more substantial and precise.
I had been considering a set from Trijicon and another from Dawson Precision. However, the L2D Combat sights seemed to strike a better balance between price and features compared to the Trijicons. The Dawson Precision sights were close contenders but lacked the protective top beam for the fiber optic, a crucial element for durability in my book. My initial feeling was excitement – these sights looked like they could genuinely enhance my P320’s capabilities.
Real-World Testing: Putting L2D Combat Co-Witness/Suppressor Fiber Optic Sight Set Sig P320 9mm / 40SW to the Test
First Use Experience
I installed the L2D Combat Co-Witness/Suppressor Fiber Optic Sight Set Sig P320 9mm / 40SW on my primary P320 and headed straight to the range. I spent the day running various drills, including target transitions, rapid-fire sequences, and accuracy testing at different distances. I even did some low-light drills inside the range’s enclosed bays. The fiber optic front sight was incredibly easy to pick up in bright daylight.
The improved sight picture was immediately noticeable, and the 1/3 co-witness with my Holosun 507C was perfect. In the lower-light conditions, the fiber optic still gathered enough light to provide a clear aiming point, far superior to the factory sights. The high contrast front sight allowed for quick target acquisition even when rapidly transitioning between targets.
There was a slight adjustment period as I got used to the higher sight picture. However, this was quickly overcome with a few magazines of practice. No issues were experienced after the initial installation.
Extended Use & Reliability
After several months of consistent use, including weekly range sessions and carrying the P320 in various conditions, the L2D Combat Co-Witness/Suppressor Fiber Optic Sight Set Sig P320 9mm / 40SW has held up admirably. There are no signs of loosening or shifting, and the black nitride finish remains pristine. I have used it in the rain with zero issues.
The sights have proven to be incredibly durable, showing no signs of wear or tear despite repeated holster draws and exposure to the elements. Maintenance is simple; a quick wipe down with a lightly oiled cloth keeps them clean and functional. They require minimal maintenance, which I appreciate.
Compared to the tritium night sights I’ve used in the past, these offer a much brighter and more visible sight picture in daylight and sufficient visibility in low light, without the eventual dimming associated with tritium. They definitely outperform standard factory sights in nearly every scenario.
Breaking Down the Features of L2D Combat Co-Witness/Suppressor Fiber Optic Sight Set Sig P320 9mm / 40SW
Specifications
The L2D Combat Co-Witness/Suppressor Fiber Optic Sight Set Sig P320 9mm / 40SW is designed specifically for Sig Sauer P320 pistols chambered in 9mm or .40SW. The sights are constructed from 17-4 stainless steel, known for its exceptional strength and corrosion resistance. The front blade height is 0.382 inches, while the rear blade height is 0.42 inches. These heights are crucial for achieving a proper 1/3 co-witness with most pistol red dots and provide adequate clearance when using a suppressor.
The set includes both a front and rear sight. The selection of 17-4 Stainless Steel and the black nitride finish translates to exceptional durability and longevity. The fiber optic filaments (available in red or green) enhance visibility in varying lighting conditions. The added sight height is crucial for those running red dots or suppressors on their P320s, ensuring a usable sight picture in any configuration.
Performance & Functionality
The L2D Combat Co-Witness/Suppressor Fiber Optic Sight Set Sig P320 9mm / 40SW performs exceptionally well. The fiber optic front sight dramatically improves target acquisition speed, especially in bright or transitional lighting. The blacked-out rear sight minimizes distractions, allowing the shooter to focus solely on the front sight.
The accuracy is on par with other high-quality sights I’ve used. The reliability has been flawless, with no issues related to the sights themselves. The sights exceed expectations in terms of usability.
Design & Ergonomics
The build quality of the L2D Combat sights is outstanding. The 17-4 stainless steel feels robust and durable, and the black nitride finish provides excellent corrosion resistance and a sleek aesthetic. The weight is negligible, and the sights feel comfortable and secure on the slide.
The sights are easy to install with the proper tools and offer a user-friendly experience. The rounded edges prevent snagging on clothing or gear. The set screw in the rear sight adds an extra layer of security.
Durability & Maintenance
Given the 17-4 stainless steel construction and durable black nitride finish, I expect these sights to last for many years with proper care. They are designed for hard use and built to withstand the rigors of daily carry and frequent range sessions. Maintenance is straightforward; a quick cleaning with a brush and a light coat of oil is all that’s needed to keep them in optimal condition.
Accessories and Customization Options
The L2D Combat Co-Witness/Suppressor Fiber Optic Sight Set Sig P320 9mm / 40SW is primarily a standalone upgrade. They are compatible with most popular red dot optics designed for the Sig P320, such as the Trijicon RMR, Holosun 507C, and Leupold DeltaPoint Pro. They are not compatible with smaller red dots that require different mounting depths.
The sights do not require any specific aftermarket barrels or grips. However, they are specifically designed to work optimally with slides milled for red dots, or for use in conjunction with suppressors. They do not offer any other customization options besides the red or green fiber optic color.
Pros and Cons of L2D Combat Co-Witness/Suppressor Fiber Optic Sight Set Sig P320 9mm / 40SW
Pros
- Outstanding visibility in bright and low-light conditions, thanks to the fiber optic front sight.
- Durable construction with 17-4 stainless steel and black nitride finish for long-lasting performance.
- Perfect height for co-witnessing with most red dot optics and clearing suppressors.
- Easy to install and maintain, with a user-friendly design.
- Enhanced accuracy and target acquisition speed.
Cons
- The heightened sight profile may require a slight adjustment period for some shooters.
- Limited customization options beyond the fiber optic color.
Who Should Buy L2D Combat Co-Witness/Suppressor Fiber Optic Sight Set Sig P320 9mm / 40SW?
The L2D Combat Co-Witness/Suppressor Fiber Optic Sight Set Sig P320 9mm / 40SW is perfect for Sig P320 owners who use red dot optics or suppressors and want a reliable, high-visibility backup sighting system. It’s also a great choice for competitive shooters and tactical users who prioritize rapid target acquisition in various lighting conditions. This is an outstanding upgrade for anyone carrying their P320 for self-defense.
This sight set might not be ideal for those who prefer traditional iron sights and have no intention of using a red dot or suppressor. It may also be overkill for purely recreational shooters who don’t prioritize enhanced visibility or co-witnessing capabilities. A sight pusher tool is a must-have accessory for installation.
Conclusion on L2D Combat Co-Witness/Suppressor Fiber Optic Sight Set Sig P320 9mm / 40SW
The L2D Combat Co-Witness/Suppressor Fiber Optic Sight Set Sig P320 9mm / 40SW is a worthwhile investment for anyone looking to enhance the performance and versatility of their Sig P320. The combination of durable construction, enhanced visibility, and perfect co-witnessing height makes it a standout product in its category. The price is justified, considering the quality and functionality you receive.
I would wholeheartedly recommend this sight set to any P320 owner looking for a significant upgrade to their sighting system. The L2D Combat sights provide peace of mind, knowing you have a reliable and effective backup, no matter the lighting conditions or your chosen accessories. Upgrade your Sig P320 today and experience the difference!