First Impressions of Strike Industries Polymer Backup Sights
The Strike Industries Polymer Backup Sights (SPBUS) offer an intriguing solution for shooters seeking a lightweight, low-profile, and budget-friendly backup sighting system. Marketed by Strike Industries as a multi-functional option, these sights boast an innovative design featuring built-in “backup sights for your backup sights”. The combination of polymer construction, tool-less adjustments, and dual aperture rear sight makes them a potentially compelling choice.
I was looking for a set of backup iron sights for my AR-15 build that wouldn’t break the bank but would still offer reliable performance. I wanted something low profile that wouldn’t interfere with my primary optic, but I also wanted something durable enough to withstand regular use.
Upon unboxing the Strike Industries Polymer Backup Sights, I was immediately struck by how incredibly lightweight they are. The SI Polymer Extreme material feels surprisingly robust, and the low-profile design is exactly what I was looking for. The sights feel solid, despite being made of polymer, and the steel mounting tab gives me confidence in their ability to withstand recoil and general wear and tear.
Compared to Magpul MBUS sights, which are a popular alternative, the SPBUS are noticeably lighter and less bulky. I chose these over the MBUS primarily because of the unique “backup sights for your backup sights” feature and the tool-less adjustability. I also considered the Troy Micro Battle Sights, but their higher price point pushed me towards the Strike Industries option.
My first impression was cautiously optimistic. I was excited about the potential of these sights, but also a little skeptical about the durability of a polymer-based system. I was hoping that they would live up to the hype and provide a reliable and accurate backup sighting solution for my AR-15.
Real-World Testing: Putting Strike Industries Polymer Backup Sights to the Test
First Use Experience
I tested the Strike Industries Polymer Backup Sights at an outdoor shooting range on a sunny afternoon with moderate winds. I mounted them on my AR-15 equipped with a 1-6x LPVO optic. I tested them at distances ranging from 25 to 100 yards.
The sights performed surprisingly well in these conditions. The adjustments were easy to make without any tools, and I was able to quickly zero the sights. The dual aperture rear sight was particularly useful, allowing me to switch between a larger aperture for faster target acquisition and a smaller aperture for increased accuracy at longer distances.
There were no major issues after the first use, but I did notice that the sights could be accidentally knocked down if bumped hard enough. This lack of a spring-loaded mechanism, while intended to prevent accidental deployment, also means the sights are more vulnerable to unintentional folding.
Extended Use & Reliability
After several months of regular use, the Strike Industries Polymer Backup Sights have held up reasonably well. I have taken them to the range multiple times, as well as on a few camping trips where my rifle was brought along.
There are a few minor signs of wear and tear, such as some slight scuffing on the polymer, but overall the sights are still in good condition. The steel mounting tab is showing no signs of rust or corrosion. The sights require minimal maintenance; I simply wipe them down with a clean cloth after each use.
Compared to my previous experience with aluminum backup sights, the polymer construction of the SPBUS is definitely less robust. However, they are significantly lighter and more than adequate for their intended purpose as a backup sighting system. The fact that they fit under my LPVO is a great advantage.
Breaking Down the Features of Strike Industries Polymer Backup Sights
Specifications
- Manufacturer: Strike Industries
- Material: SI Polymer Extreme with steel mounting tab and insert
- Mount Type: Picatinny
- Color: Black
- Rear Aperture Sizes: 4.70mm (0.19″) and 1.75mm (0.07″)
- Adjustment: Tool-less windage and elevation
- Deployment: Manual flip-up, non-spring loaded
- The use of SI Polymer Extreme and steel reinforcement provides a good balance of weight savings and durability, crucial for a backup sight.
Performance & Functionality
The Strike Industries Polymer Backup Sights function well as a secondary sighting system. They are easy to deploy and adjust, and the dual aperture rear sight provides versatility for different shooting scenarios.
The main strength of these sights is their low profile and lightweight design. However, the lack of a spring-loaded mechanism can be a weakness, as the sights can be easily knocked down. The “backup sights for your backup sights” feature is a clever idea, but in practice, the effectiveness of the pistol-style sights when folded down is limited.
The sights meet my expectations as a budget-friendly backup option, but they don’t exceed them. They are a good value for the price, but they are not as robust or feature-rich as more expensive alternatives.
Design & Ergonomics
The build quality is acceptable for a polymer-based product. The SI Polymer Extreme material feels reasonably durable, and the steel mounting tab provides a secure attachment to the Picatinny rail.
The sights are lightweight and comfortable to use, and the tool-less adjustments are a welcome feature. The manual flip-up deployment is easy to operate. However, the lack of a spring-loaded mechanism means that the sights require deliberate action to deploy and can be accidentally knocked down.
Durability & Maintenance
The Strike Industries Polymer Backup Sights are reasonably durable for their intended purpose. They should last for several years with proper care and maintenance.
Maintaining these sights is simple. Just wipe them down with a clean cloth after each use. The polymer material is resistant to most solvents, but it’s best to avoid harsh chemicals.
Accessories and Customization Options
The Strike Industries Polymer Backup Sights do not come with any accessories. The front sight can be painted to the user’s color preference.
These sights are compatible with any standard Picatinny rail. There are no specific customization options beyond painting the front sight.
Pros and Cons of Strike Industries Polymer Backup Sights
Pros
- Lightweight and low profile design.
- Tool-less windage and elevation adjustments.
- Dual aperture rear sight for versatility.
- Affordable price point.
- Easy to install and use.
Cons
- Not spring-loaded, making them easy to knock down.
- “Backup sights for your backup sights” feature is of limited practical use.
- Polymer construction is less durable than metal alternatives.
Who Should Buy Strike Industries Polymer Backup Sights?
These sights are perfect for budget-conscious AR-15 owners who want a lightweight and low-profile backup sighting system. They are also a good option for those who prioritize tool-less adjustability and ease of use. These are great for home defense rifles or range toys.
Those who need a highly durable and rugged sighting system for duty or tactical applications should skip this product. Those who want a spring-loaded deployment mechanism or a more effective “backup sights for your backup sights” feature should also consider other options.
A must-have modification would be painting the front sight a bright color to improve visibility in low-light conditions.
Conclusion on Strike Industries Polymer Backup Sights
The Strike Industries Polymer Backup Sights offer a compelling combination of affordability, lightweight design, and ease of use. While the polymer construction and lack of a spring-loaded mechanism may be drawbacks for some, these sights are a good value for the price.
The price is justified for what you get. These are reasonably durable. The sights fit well, and are accurate, which is critical.
I would personally recommend the Strike Industries Polymer Backup Sights to anyone looking for a budget-friendly backup sighting system for their AR-15. If you want a great value, check these out!