The Kel-Tec Sub 2000 is a unique and versatile pistol-caliber carbine known for its foldable design and affordability. However, one area that often receives attention from owners is the rear sight. This guide delves into the Kel-Tec Sub 2000 rear sight, exploring its design, common issues, upgrades, and how to optimize its performance for improved accuracy.
Understanding the Factory Rear Sight
The standard Kel-Tec Sub 2000 rear sight is a simple, fixed design. It's a drift adjustable sight, meaning you can adjust windage (left and right) by tapping it gently with a punch. This is a relatively straightforward process, but requires care to avoid damage. The elevation is not adjustable on the factory sight.
- Pros: Simple, inexpensive, reliable, and included with the firearm.
- Cons: Limited adjustability, can be difficult to acquire in low-light conditions, some users find the sight picture less than ideal.
One frequent complaint is the sight's low profile. This can make target acquisition challenging, especially for shooters who prefer a higher sight picture. The narrow sight notch can also contribute to less precise aiming.
Common Issues with the Factory Sight
Many Sub 2000 owners report issues with the factory rear sight. These include:
- Loosening: The sight can become loose over time due to recoil and repeated folding/unfolding of the firearm. Regularly checking its tightness is crucial.
- Damage: Rough handling or accidental impacts can bend or damage the sight.
- Sight Picture: As mentioned earlier, some users find the sight picture inadequate for precision shooting.
Upgrading Your Kel-Tec Sub 2000 Rear Sight
Fortunately, several aftermarket options significantly improve the Sub 2000's sight system. These upgrades address the limitations of the factory sight, providing a more robust and user-friendly experience.
Popular Aftermarket Rear Sight Options
Several companies manufacture replacement rear sights specifically designed for the Kel-Tec Sub 2000. These often offer:
- Adjustable Elevation: Unlike the factory sight, many aftermarket options allow for both windage and elevation adjustments. This allows for precise zeroing at various distances.
- Improved Sight Picture: Many aftermarket sights feature a wider notch or a different design that provides a clearer and more intuitive sight picture.
- Increased Durability: Aftermarket sights are generally constructed from more durable materials, increasing their resistance to damage and wear.
Examples of popular aftermarket sights include:
- Trijicon RMR or similar red dot: This mounting option requires an adapter plate, but allows for rapid target acquisition and superior performance in low-light situations. (Requires a specific mounting plate compatible with the Sub-2000.)
- Magpul MBUS Rear Sight: Provides a more robust and reliable sight picture compared to the factory option. (May require modification for proper fit and function)
- Ghost Ring Sights: These are known for their rapid target acquisition capabilities, and some manufacturers offer custom designs for the Sub-2000.
Installation Considerations
Installing an aftermarket rear sight typically requires removing the factory sight. This usually involves carefully driving out the factory sight using a sight pusher or punch. Refer to your chosen sight's installation instructions for detailed guidance. Incorrect installation can damage the firearm or the sight itself.
Maintaining Your Kel-Tec Sub 2000 Rear Sight
Regardless of whether you use the factory sight or an aftermarket upgrade, proper maintenance is key to ensuring optimal performance and longevity.
- Regular Cleaning: Clean the sight regularly to remove dirt, debris, and residue that can interfere with its function.
- Tightness Check: Periodically check the sight's tightness to ensure it remains securely attached to the firearm.
- Proper Storage: Store the firearm properly to prevent damage to the sight.
Conclusion: Enhancing Your Sub 2000's Accuracy
The Kel-Tec Sub 2000 rear sight is a crucial component affecting the firearm's accuracy and overall shooting experience. While the factory sight suffices for some, many shooters find upgrading to an aftermarket option significantly improves performance. The choice ultimately depends on individual preferences, budget, and intended use. Remember to always follow manufacturer instructions and prioritize safety when handling firearms and installing aftermarket components.