Shotgun sights, unlike those on rifles, often require a different approach. While some shotguns come equipped with factory-installed sights, many don't. This leaves many shotgun owners seeking ways to add sights to enhance accuracy, particularly for target shooting or hunting at longer ranges. One increasingly popular method is using glue-on sights. This guide explores the ins and outs of using glue to attach sights to shotgun barrels, addressing the pros, cons, and best practices for achieving a durable and accurate setup.
Understanding Glue-On Shotgun Sights
Glue-on sights offer a relatively simple and inexpensive way to add aiming points to your shotgun. These sights typically consist of a small, sturdy piece of material (often fiber optic or metal) designed to be adhered directly to the shotgun barrel. The ease of installation is a major draw, making this a popular option for shooters who prefer a DIY approach or lack the tools for more permanent sight installations.
Types of Glue-On Shotgun Sights
Several types of glue-on sights are available, catering to different needs and preferences:
- Fiber Optic Sights: These are highly visible, even in low-light conditions, thanks to their ability to gather and transmit ambient light. They're often preferred for hunting and sporting clays.
- Metal Sights: Typically made from durable materials like brass or steel, these offer a more robust solution that can withstand more recoil. They may not be as visible as fiber optic sights but provide a more traditional aiming experience.
- Tape Sights: While not strictly "glue-on", many shooters use high-strength, specialized tapes to attach sights. This method offers ease of removal, useful if you want to experiment with sight placement. However, it may not be as durable as adhesive-based methods.
Choosing the Right Glue
The success of your glue-on sight project hinges heavily on the adhesive used. Selecting an inappropriate glue can lead to sight failure, potentially causing damage to your firearm. Key considerations when choosing a glue include:
- Bond Strength: The glue must be strong enough to withstand the recoil of your shotgun, especially with higher-gauge shotguns.
- Heat Resistance: The glue needs to resist the heat generated by firing, ensuring the sight remains firmly attached.
- Solvent Resistance: The glue should be resistant to gun cleaning solvents, preventing premature detachment.
- UV Resistance: Prolonged sun exposure can degrade some glues, weakening the bond over time.
Several glues have proven effective for this application. High-strength cyanoacrylate (super glue) is a popular choice, known for its fast bonding and strong hold. However, ensure the glue is specifically designed for high-temperature applications. Epoxy adhesives are another viable option, offering even greater strength and durability. Always follow the manufacturer's instructions carefully.
Case Study: Comparing Glue Types
A small study comparing cyanoacrylate and epoxy glue on shotgun sights found that epoxy consistently outperformed cyanoacrylate in terms of long-term durability under recoil stress. While cyanoacrylate provided an initially strong bond, it showed a greater tendency to fail under repeated firing compared to epoxy.
| Glue Type | Initial Bond Strength | Long-Term Durability | Heat Resistance | Cost |
|---|---|---|---|---|
| Cyanoacrylate | High | Moderate | Moderate | Low |
| Epoxy | High | High | High | Moderate |
Step-by-Step Guide to Gluing Sights onto Shotgun Barrels
This process requires precision and patience for optimal results:
- Clean the Barrel: Thoroughly clean the area where the sight will be attached. Remove any oil, grease, or dirt with a degreasing solvent. Allow to dry completely.
- Prepare the Sight: Ensure the sight is clean and free of any debris.
- Apply the Glue: Apply a small amount of adhesive to both the sight base and the barrel. Follow the manufacturer's instructions precisely.
- Align and Press: Carefully align the sight with the desired position on the barrel and press firmly for the recommended duration (usually several minutes).
- Curing Time: Allow the glue to cure completely before handling or firing the shotgun. This curing time can vary significantly depending on the type of glue used. Consult the manufacturer's instructions.
- Test Fire: Once fully cured, test fire the shotgun at a safe range. Observe the sight for any movement or detachment.
Important Note: Always wear appropriate safety glasses and gloves throughout this process.
Potential Drawbacks and Considerations
While glue-on sights are convenient, they do have limitations:
- Durability: While many glues are strong, constant recoil can eventually weaken the bond, especially with powerful shotguns.
- Sight Adjustment: Glue-on sights generally offer little to no adjustment once attached. This requires careful placement during installation.
- Removal: Removing glued-on sights can be difficult and potentially damage the barrel.
Alternatives to Glue-On Sights
If glue-on sights aren't the right fit for you, consider these alternatives:
- Clamp-On Sights: These offer easy attachment and removal without the use of adhesive.
- Screw-On Sights: These provide a more permanent and robust solution but require drilling and tapping the barrel. This should be done by a qualified gunsmith.
- Factory-Installed Sights: If possible, opt for a shotgun that comes equipped with factory-installed sights for optimal durability and accuracy.
Conclusion
Gluing sights onto shotgun barrels can be a cost-effective and relatively simple way to enhance accuracy. However, success hinges on meticulous preparation and the selection of a high-quality, appropriate adhesive. Carefully consider the pros and cons, and explore alternative methods before proceeding. Remember, safety should always be your top priority. If you are unsure about any aspect of this process, consult a qualified gunsmith.