Day 2

Published on December 19, 2022
Duration: 25:20

This guide details the process of mounting a Primary Arms MD-25 red dot sight, emphasizing the importance of selecting the correct base and riser for desired height and firearm compatibility. It covers the challenges of mounting Picatinny-style optics on Weaver rails and provides steps for proper installation, including thread locker application and initial zeroing considerations. The content highlights the flexibility of the MD-25 system for various platforms like AR-15s and shotguns.

Quick Summary

The Primary Arms MD-25 red dot sight offers a larger field of view and long battery life. It includes multiple riser options for adjustable centerline height, allowing for optimal mounting on firearms like AR-15s and shotguns. Ensure compatibility between your optic's mount (Picatinny/Weaver) and your firearm's rail system for a secure installation.

Chapters

  1. 00:00Introduction to Primary Arms MD-25
  2. 00:07Previous Optic and Desire for New One
  3. 00:17Choosing the MD-25 Model
  4. 00:26MD-25 Features and Size
  5. 00:40Mounting Plans for AR and Shotgun
  6. 00:52Included Height Adjustment Pieces
  7. 01:03Co-witnessing with Iron Sights
  8. 01:15Desired Low Mounting Height
  9. 01:28Identifying Standard and Low Bases
  10. 01:42Preparing Screws and Thread Locker
  11. 01:49Shotgun Rail Preparation
  12. 01:57Picatinny vs. Weaver Rail Issue
  13. 02:12Old Mount on Weaver Rail
  14. 02:18New Mount on Weaver Rail Problem
  15. 02:26Ordering Correct Picatinny Rail
  16. 02:51Transition to Reloading Press Setup

Frequently Asked Questions

What are the key features of the Primary Arms MD-25 red dot sight?

The Primary Arms MD-25 features a larger field of view, long battery life lasting for years, and numerous brightness adjustments. It also comes with multiple riser options to achieve different centerline heights, making it adaptable for various firearms like AR-15s and shotguns.

Can I mount a Picatinny-style optic mount on a Weaver rail?

Generally, no. Picatinny mounts have wider slots than Weaver rails. While some modifications might be possible, it's best to use a Picatinny rail for Picatinny mounts or a Weaver mount for Weaver rails to ensure a secure and proper fit without damaging the equipment.

How do I achieve a low mounting height for a red dot sight on a shotgun?

To achieve a low mounting height on a shotgun, use the lowest available base for your red dot sight and avoid any unnecessary riser components. This helps maintain a comfortable shooting position and a lower profile for the optic.

What is the benefit of using thread locker when mounting optics?

Using thread locker on the screws when mounting optics is crucial to prevent them from loosening due to the recoil generated during firing. This ensures the optic remains zeroed and securely attached to the firearm.

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