New FN 5.7 Mk3 First Shots: The Ultralight High Cap Handgun

Published on October 2, 2022
Duration: 15:17

The FN Five-seveN Mk3 is an ultralight, high-capacity handgun chambered in 5.7x28mm, offering low recoil and good controllability for rapid fire. While it features an improved red dot mount and sights, its safety mechanism and magazine disconnect are criticized. Ammunition cost is a significant drawback, and older magazines may not function correctly with the Mk3 due to grip design changes.

Quick Summary

The FN Five-seveN Mk3 is an ultralight, high-capacity handgun in 5.7x28mm, featuring a red dot mount and improved sights. It offers controllable rapid fire but suffers from expensive ammunition and a criticized safety/magazine disconnect. Older magazines may not be compatible due to grip changes.

Chapters

  1. 00:09Introducing the FN Five-seveN Mk3
  2. 00:26History & Purpose of 5.7x28mm Caliber
  3. 01:53New Features: Red Dot Mount & Sights
  4. 04:28Shooting Performance & Ammo Cost
  5. 07:36Magazine Compatibility Issues Explained
  6. 11:13Final Impressions & Ruger 5.7 Comparison

Frequently Asked Questions

What are the key features of the new FN Five-seveN Mk3?

The FN Five-seveN Mk3 is an ultralight, high-capacity handgun in 5.7x28mm. It includes a red dot mount with plates, adjustable 3-dot luminescent sights, and an aggressive grip. It weighs 25 oz with a 4.8-inch barrel and holds 20+1 rounds.

How does the FN Five-seveN Mk3 perform when shooting?

The Mk3 is very controllable and easy for rapid fire, similar to a .22 Magnum. It offers low recoil due to the 5.7x28mm cartridge, making it comfortable to shoot despite its lightweight design.

What are the main drawbacks of the FN Five-seveN Mk3?

The primary drawbacks are the high cost of 5.7x28mm ammunition ($1.25-$1.50 per round) and a criticized safety mechanism and magazine disconnect. Older magazines may also have compatibility issues with the Mk3's grip.

How does the FN Five-seveN Mk3 compare to the Ruger 5.7?

The FN Five-seveN Mk3 is more expensive, retailing around $1500 compared to the Ruger 5.7's $1000. However, the reviewer found the FN Mk3 to offer better ergonomics and a more refined shooting experience.

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