The super-light Barrett M240LW GPMG, with firearms and weapon expert Jonathan Ferguson

Published on September 27, 2023
Duration: 16:07

This video provides an expert-level review of the Barrett M240LW, a lightweight variant of the M240 General Purpose Machine Gun. Firearms expert Jonathan Ferguson details the design evolution from the FN MAG 58 and US M240 variants, highlighting the LW's significant weight reduction achieved through a welded steel receiver and fluted barrel. The review covers key improvements like the KeyMod handguard, adjustable buttstock, and a new bipod system, offering insights into its engineering and potential advantages over previous models.

Quick Summary

The Barrett M240LW is a significantly lighter variant of the M240 GPMG, weighing 21.15 pounds, a reduction of 6.5 pounds from the standard model. This was achieved through a welded steel receiver, a fluted and shorter barrel, and a KeyMod handguard, offering improved ergonomics and maneuverability.

Chapters

  1. 00:00Introduction to the Barrett M240LW
  2. 00:15Barrett M240LW Overview
  3. 00:32Evolution from FN MAG 58 and M240
  4. 01:01M240LW Weight Reduction Program
  5. 01:40FN's M240L vs. Barrett's M240LW
  6. 02:53M240LW Receiver Construction
  7. 03:13Weight Reduction Goals and Achievements
  8. 04:14Design Features: Barrel and Receiver
  9. 04:50Two-Part Welded Receiver
  10. 06:00Machining and Reinforcing Ribs
  11. 06:30Markings and Branding
  12. 07:04Carrying Handle Mechanism
  13. 08:05Butt Stock Assembly
  14. 09:07Adjustable Butt Stock
  15. 09:51Improvements: Picatinny Rail and Sights
  16. 10:09Handguard System: KeyMod
  17. 11:13Integrated Bipod System
  18. 12:04Bipod Design and Functionality
  19. 12:34Maintaining Manual of Arms
  20. 13:00Disassembly and Bolt Carrier
  21. 13:19Proof Marks and UK Legality
  22. 15:04M240L Adoption and Future

Frequently Asked Questions

What is the primary advantage of the Barrett M240LW over standard M240 models?

The primary advantage of the Barrett M240LW is its significant weight reduction, achieving a 6.5-pound decrease compared to the standard M240. This makes it considerably lighter and more maneuverable for infantry operations.

How did Barrett achieve the weight reduction in the M240LW?

Barrett achieved weight reduction through several design changes, including a welded steel receiver, a deeply fluted and shorter barrel, and a redesigned handguard and bipod system. These modifications collectively reduced the overall weight.

What is the key difference in receiver construction between the Barrett M240LW and the FN M240L?

The main difference lies in their receiver materials and construction. The Barrett M240LW uses a welded steel receiver, whereas the FN M240L, which won an earlier US Army contract, utilizes a titanium receiver for weight savings.

Does the Barrett M240LW feature modern accessory mounting options?

Yes, the Barrett M240LW incorporates a KeyMod handguard system, which was a popular modular attachment standard at the time of its development, allowing for the attachment of various accessories. It also features an integral Picatinny rail on the top cover.

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