Origins of Constant Recoil: The Ultimax Mk3 (feat. Mae & a Yeti)

Published on October 19, 2019
Duration: 7:28

This video provides an in-depth look at the ST Kinetics Ultimax Mk3 light machine gun, focusing on its innovative 'constant recoil' system. Designed by Jim Sullivan, the Ultimax Mk3 offers exceptional controllability during full-auto fire due to its unique mechanism that prevents the bolt from slamming into the rear of the receiver. The video features demonstrations and expert commentary on its design principles and practical applications.

Quick Summary

The ST Kinetics Ultimax Mk3 light machine gun features a revolutionary 'constant recoil' system designed by Jim Sullivan. This mechanism prevents the bolt from slamming into the receiver, drastically reducing felt recoil and muzzle climb for superior controllability during full-auto fire.

Chapters

  1. 00:00Introduction to the Ultimax Mk3
  2. 00:40The Concept of Constant Recoil
  3. 01:18Prone and Standing Shooting Demos
  4. 02:37Mae's Range Impressions
  5. 04:12Why Constant Recoil Isn't Universal
  6. 06:31Long Barrel Mag Dump

Frequently Asked Questions

What is the primary innovation of the Ultimax Mk3?

The Ultimax Mk3's primary innovation is its 'constant recoil' system. This design slows the bolt's rearward movement, preventing it from impacting the receiver, which results in exceptionally smooth and controllable full-auto fire.

Who designed the Ultimax Mk3 and for which country?

The Ultimax Mk3 light machine gun was designed by engineer Jim Sullivan for Singapore. Sullivan is renowned for his earlier work in downscaling the AR-10 to create the iconic AR-15 rifle.

Why isn't the constant recoil system used in more firearms?

Constant recoil is most beneficial in full-auto fire, making it less relevant for semi-automatic civilian or police rifles. Additionally, major military forces are often hesitant to replace established weapon systems for incremental improvements.

What are the magazine options for the Ultimax Mk3?

The Ultimax Mk3 can be equipped with either a 100-round drum magazine or a standard 30-round box magazine, providing versatility for different operational needs.

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