WWSD2021 - Complete Lower

Published on May 17, 2021
Duration: 9:27

This InRangeTV video introduces the WWSD2021 Complete Lower Assembly, featuring the refined KP-15 monolithic polymer receiver and the new KE Arms Recluse trigger. The Recluse trigger is a sealed, searless design with increased hammer spring pressure, specifically engineered to reliably ignite hard primers found in military ammunition and prevent slam fires, especially when paired with HK uppers. The video demonstrates a successful test fire of the WWSD2021 lower with an HK MR556 upper using Lake City XM193 ammunition, confirming its reliability.

Quick Summary

The WWSD2021 Complete Lower Assembly features the KP-15 monolithic polymer receiver with ambidextrous controls and the KE Arms Recluse trigger. The Recluse trigger offers enhanced reliability with hard primers and military ammunition due to its sealed design and increased hammer spring pressure, effectively mitigating slam fire risks, especially with HK uppers.

Chapters

  1. 00:04Intro & WWSD2020 Update
  2. 01:11WWSD2021 Complete Lower Announcement
  3. 01:37KP-15 Lower Receiver & Ambi Features
  4. 01:57SLT-1 Trigger System
  5. 03:37Recluse Trigger Evolution
  6. 04:25Slam Fire Mitigation & Ammunition
  7. 05:19Recluse Installation and Testing Plan
  8. 06:11WWSD2021 Lower Features Recap
  9. 06:36Test Fire Preparation
  10. 07:10Range Test at 50 Yards
  11. 07:52Test Fire Results and Availability
  12. 08:27Channel Support and Call to Action

Frequently Asked Questions

What is the main advantage of the KE Arms Recluse trigger in the WWSD2021 lower?

The KE Arms Recluse trigger is designed for enhanced reliability, especially with hard primers found in military ammunition. Its sealed design and increased hammer spring pressure help prevent slam fires and ensure consistent ignition, particularly when paired with uppers like the HK MR556.

What are the key features of the WWSD2021 Complete Lower Assembly?

The WWSD2021 lower features the KP-15 monolithic polymer receiver, which includes an integrated storage compartment. It also boasts a full suite of ambidextrous controls: bolt release, magazine release, and a safety selector with adjustable 45 or 90-degree throw.

How does the Recluse trigger address slam fire concerns with military ammunition?

The Recluse trigger addresses slam fire concerns by increasing hammer spring pressure. This ensures a stronger, more consistent hammer strike on the primer, which is necessary to reliably ignite harder primers found in military cartridges and to overcome the inertia of the bolt closing.

Where can I purchase the WWSD2021 lower and Recluse trigger?

Both the WWSD2021 Complete Lower Assembly and the KE Arms Recluse trigger are available for purchase through Brownells. Supporting the InRangeTV channel through these product sales helps fund their content creation.

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