SureFire X300U-A Overview & Review

Published on March 26, 2023
Duration: 11:59

This guide details the installation of the SureFire X300U-A weapon light, emphasizing the importance of selecting the correct adapter plate (U or P) for optimal rail fitment. It covers the process of swapping plates, mounting the light, and troubleshooting minor wiggle with electrical tape. The guide also highlights battery installation and the optional cotter pin for securing the battery compartment during demanding use, drawing on the expertise of Brian from 1st Shot Tactical.

Quick Summary

The SureFire X300U-A is a 1000-lumen duty weapon light with a quick-attach/detach system. It uses two 123A lithium batteries and comes with interchangeable U-plate (universal) and P-plate (Picatinny) adapters. Minor mounting wiggle can be resolved with electrical tape on the light's tabs.

Chapters

  1. 00:00Introduction and Product Overview
  2. 00:43Unboxing and Initial Impressions
  3. 01:18Included Accessories and Documentation
  4. 02:57Battery Access and Type
  5. 03:51Securing Battery Compartment
  6. 04:34Adapter Plates and Rail Compatibility
  7. 05:44Optional Permanent Locking Mechanism
  8. 06:15A-Model vs. B-Model Differences
  9. 07:07Mounting and Wiggle Fix
  10. 09:03Rail Compatibility Examples
  11. 10:32Light Functionality (Momentary/Permanent On)
  12. 11:25Conclusion and Recommendation

Frequently Asked Questions

How do you mount the SureFire X300U-A weapon light?

Mounting the SureFire X300U-A involves selecting the correct adapter plate (U for universal, P for Picatinny), aligning the light with the firearm's rail, sliding it into place, and engaging the quick-attach lever. Minor wiggle can be addressed with electrical tape on the tabs.

What are the differences between the SureFire X300U-A and X300U-B models?

The X300U-A features a quick-attach/detach lever for easy mounting and removal, while the X300U-B has a metal frame with a screw-on attachment, offering a more permanent and robust connection to the firearm's rail.

What type of batteries does the SureFire X300U-A use?

The SureFire X300U-A is powered by two 123A lithium batteries. Compatible brands include SureFire, Streamlight, Panasonic, Energizer, and Duracell.

How can I fix a loose fit with the SureFire X300U-A?

If the SureFire X300U-A exhibits some wiggle on your firearm's rail, you can often achieve a tighter fit by applying small strips of electrical tape to the light's mounting tabs before attaching it.

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