Springfield KUNA w/Nexus lower & Atrius Super Selektor is 🔥! @Sooicytyson putting in WORK! #FYP

Published on November 5, 2025
Duration: 1:06

This video showcases the Springfield Armory KUNA rifle equipped with a Nexus Firearms lower receiver and an Atrius Super Selektor FRT trigger. Initial testing revealed a trigger reset issue in semi-automatic mode, which was suspected to be due to dirt. After cleaning, the rifle performed flawlessly in FRT (Firearm Reset Trigger) mode, with the entire Promag drum magazine cycling without a hitch. The speaker notes the discrepancy in performance between semi-auto and FRT modes.

Quick Summary

The Springfield Armory KUNA rifle, fitted with a Nexus Firearms lower and Atrius Super Selektor FRT trigger, initially exhibited a trigger reset failure in semi-automatic mode, possibly due to fouling. However, after addressing this, the FRT mode performed flawlessly, cycling an entire Promag drum magazine without issue, highlighting a notable performance difference between the modes.

Chapters

  1. 00:00Introduction: Springfield KUNA w/ Nexus Lower & FRT
  2. 00:05Atrius Super Selector FRT Trigger System
  3. 00:08Promag Drum Magazine Test
  4. 00:12Initial Semi-Auto Test & Malfunction
  5. 00:30Troubleshooting: Trigger Not Resetting
  6. 00:38Suggestion: Try in Super Safe (FRT) Mode
  7. 00:51FRT Mode Performance: Ran Like Butter
  8. 00:59Comparison: Semi-Auto vs. FRT Reliability

Frequently Asked Questions

What issues were encountered with the Springfield Armory KUNA and Nexus Firearms lower?

During initial testing in semi-automatic mode, the Springfield Armory KUNA with the Nexus Firearms lower and Atrius Super Selektor FRT trigger experienced a failure to reset. This issue was suspected to be related to dirt or fouling within the firearm.

How did the Atrius Super Selektor FRT trigger perform in testing?

After addressing a potential reset issue in semi-automatic mode, the Atrius Super Selektor FRT trigger allowed the Springfield Armory KUNA to function flawlessly in FRT mode. An entire Promag drum magazine was cycled successfully, indicating excellent reliability in this configuration.

What components were featured on the Springfield Armory KUNA rifle?

The Springfield Armory KUNA rifle in this video was equipped with a Nexus Firearms lower receiver and an Atrius Super Selektor FRT trigger. A Promag drum magazine was also utilized for testing purposes.

What was the observed difference in reliability between semi-auto and FRT modes?

A significant difference in reliability was noted. While the rifle experienced a trigger reset issue in semi-automatic mode, it performed exceptionally well in FRT (Firearm Reset Trigger) mode, cycling an entire drum magazine without any malfunctions.

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