The Glock 20, known for its substantial .10mm capacity, becomes even more versatile with the addition of a red dot optic. The MOS (Modular Optic System) variant provides a platform for mounting various red dots, significantly enhancing accuracy and speed. This guide delves into everything you need to know about the Glock 20 MOS and its integration with red dot sights.
Choosing the Right Red Dot for Your Glock 20 MOS
Selecting the optimal red dot sight depends on your specific needs and preferences. Several factors influence this decision:
Size and Weight
Larger red dots offer larger viewing windows, potentially improving target acquisition, but add weight and bulk. Smaller red dots are more compact and lightweight but might have smaller viewing windows. Consider your shooting style and how much extra weight you're comfortable carrying. A heavier red dot might impact your overall balance and recoil management, particularly with the already substantial Glock 20.
Battery Life
Battery life varies significantly among red dot sights. Some offer extended battery life, ideal for extended training sessions or competitive shooting, while others require more frequent battery changes. Check the manufacturer's specifications before making a purchase. Unexpected battery failure during a critical moment can be detrimental.
Durability
Given the powerful recoil of the .10mm, durability is paramount. Opt for a red dot known for its robustness and resistance to recoil and harsh conditions. Look for rugged construction, shockproof designs, and water resistance ratings.
Mounting Plate
The Glock MOS system uses different mounting plates for various red dot models. Ensure the red dot you choose is compatible with the Glock 20 MOS and has the correct plate. Incorrect mounting can lead to zeroing issues and potential malfunction.
Popular Red Dot Options for Glock 20 MOS:
| Red Dot Sight | Pros | Cons |
|---|---|---|
| Trijicon RMR | Excellent durability, crisp reticle | Relatively expensive, smaller window |
| Leupold DeltaPoint Pro | Excellent battery life, bright reticle | Can be slightly bulky |
| Holosun 507K/508T | Affordable, good battery life, multiple reticles | Durability can be a concern with high recoil |
| Vortex Venom | Affordable, lightweight, good battery life | Smaller window |
Mounting Your Red Dot on the Glock 20 MOS
The Glock MOS system simplifies the process of mounting red dot sights. It involves removing the factory rear sight and replacing it with a mounting plate specific to your chosen red dot. Refer to your red dot's instructions and the Glock's manual for specific guidance.
Important Considerations:
- Proper Torque: Over-tightening screws can damage the optic or the MOS system. Use the recommended torque specifications.
- Co-witnessing: Some shooters prefer a co-witness setup, allowing them to use the iron sights as a backup. Determine whether this is important to you before making a decision.
- Zeroing: After mounting, proper zeroing is crucial for accuracy. Start with a short-range zero and gradually work your way to longer ranges.
Case Study: Improving Accuracy with a Red Dot on the Glock 20
A competitive shooter, experienced with the Glock 20, found significant improvements in their accuracy and speed after installing a Trijicon RMR. They reported a notable reduction in shot-to-shot time and improved grouping at various ranges. This case highlights the potential benefits of red dot sights for experienced and novice shooters alike.
Conclusion: Enhancing the Glock 20 with a Red Dot Sight
The Glock 20 MOS offers a fantastic platform for upgrading your pistol with a red dot sight. The improved accuracy and speed make it a worthwhile modification for both recreational and professional shooters. Careful consideration of the factors outlined above will ensure that you choose the best red dot sight for your specific needs and shooting style. Remember, practice is key to mastering the use of your new setup!