New Glock Gen 5 Model 21 MOS 45 ACP Review

Published on April 26, 2023
Duration: 25:13

The Glock 21 Gen 5 MOS in .45 ACP offers significant ergonomic improvements over previous generations, including the removal of finger grooves and an ambidextrous slide stop. Its Modular Optic System (MOS) allows for easy red dot sight integration, and the Glock Marksman Barrel enhances accuracy. While the large frame provides a stable shooting platform, it may be too bulky for some users.

Quick Summary

The Glock 21 Gen 5 MOS in .45 ACP features improved ergonomics with no finger grooves, a flared magwell, and MOS compatibility for red dot sights. Its Glock Marksman Barrel enhances accuracy, and the large frame helps manage recoil, though it may be bulky for some users.

Chapters

  1. 00:00Introduction & Shooting Montage
  2. 01:08Glock 21 History & Gen 5 Updates
  3. 02:54Gen 5 vs. Gen 3 Comparison
  4. 04:08Magazines & Ergonomics
  5. 05:20Slide & Barrel Features
  6. 07:51Frame Size Comparison
  7. 09:40Internal Upgrades
  8. 12:55MOS Plates & Backstraps
  9. 14:23Trigger Pull & Weight Specs
  10. 16:29Range Performance & Accuracy
  11. 18:16Field Stripping Demonstration
  12. 20:19Final Assessment & MSRP

Frequently Asked Questions

What are the key ergonomic improvements in the Glock 21 Gen 5?

The Glock 21 Gen 5 removes finger grooves, significantly improving ergonomics for a wider range of hand sizes. It also features a flared magwell for easier magazine insertion and an ambidextrous slide stop for enhanced usability.

What is the purpose of the MOS system on the Glock 21 Gen 5?

The MOS (Modular Optic System) allows for the direct mounting of various red dot sights onto the pistol's slide. It comes with interchangeable adapter plates to ensure compatibility with different optic footprints, enhancing aiming speed and precision.

How does the Glock 21 Gen 5 perform during range testing?

During range testing with Fiocchi 230gr FMJ ammunition, the Glock 21 Gen 5 demonstrated manageable recoil, attributed to its large frame absorbing impact. Accuracy at 7 yards showed tight groupings, indicating good inherent precision.

What are the main pros and cons of the Glock 21 Gen 5 MOS?

Pros include high capacity (13+1), improved Gen 5 ergonomics, and MOS readiness for optics. The primary con is its large frame size, which may be too bulky for some shooters to handle comfortably or conceal effectively.

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