What You Need to Know About M249 SAW Crew Served Gun

Published on September 25, 2020
Duration: 6:47

This guide provides an operational overview of the M249 SAW Mark 46, a chopped-down variant. It details the charging procedure, safety mechanism, belt-fed and magazine loading, open bolt firing, and ejection ports. The information is presented with expert commentary from Mike O'Dell of CMMG, highlighting the firearm's features and operation.

Quick Summary

The M249 SAW Mark 46 is an open bolt, belt-fed machine gun that can also accept STANAG magazines. To charge it, pull the charging handle fully rearward and lock the bolt. Spent brass ejects from the lower port, and links from the upper port. Its safety mechanism is a cross-pin safety.

Chapters

  1. 00:24Introduction and Guests
  2. 00:40M249 SAW Mark 46 Overview
  3. 01:01Basic Operation Questions
  4. 01:21Safety Mechanism
  5. 01:34Charging the Firearm
  6. 01:49Loading Ammunition
  7. 02:40Brass and Link Ejection
  8. 03:06Open Bolt Firing
  9. 03:29STANAG Magazine Port
  10. 04:09Other Features
  11. 04:55Bipod and Shoulder Rest
  12. 05:04Conclusion and Thanks

Frequently Asked Questions

How do you charge the M249 SAW Mark 46?

To charge the M249 SAW, grasp the charging handle, pull it all the way to the rear until the bolt locks back. Once locked, the safety can be engaged. This prepares the firearm for loading.

What are the ejection ports on the M249 SAW for?

The M249 SAW has two ejection ports: spent brass is ejected from the lower port, while empty ammunition links are ejected from the upper port. It's important to keep these areas clear of obstructions and appendages.

Can the M249 SAW be fired from an open bolt?

Yes, the M249 SAW is an open bolt system. This means the bolt remains to the rear when cocked. Pulling the trigger sends the bolt forward to chamber, fire, and eject the round.

What feeding options does the M249 SAW Mark 46 offer?

The M249 SAW Mark 46 is primarily belt-fed but also features a magazine port that accepts standard STANAG box magazines, providing operational flexibility.

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