Bad AR Barrel Nut/Delta Ring Weld Spring

Published on March 5, 2026
Duration: 1:28

This expert guide from School of the American Rifle details how to identify and replace a malformed weld spring in an AR-15's delta ring assembly. A misaligned weld spring can cause gas tube issues, leading to potential component damage. The video provides a clear visual comparison and step-by-step instructions for replacement, emphasizing proper alignment for optimal function.

Quick Summary

A malformed AR-15 weld spring can cause the gas tube to misalign, leading to friction or strikes on the carrier key and potential component damage. Replacement with a correctly formed spring is necessary to ensure proper gas tube pass-through and reliable firearm function.

Chapters

  1. 00:00Introduction to Delta Ring Weld Spring
  2. 00:04AR-15 Delta Ring Assembly Components
  3. 00:24Proper Gas Tube Alignment
  4. 00:40Identifying a Malformed Weld Spring
  5. 01:00Consequences of Misalignment
  6. 01:12Solution: Weld Spring Replacement

Frequently Asked Questions

What is a weld spring in an AR-15 delta ring assembly?

The weld spring is a critical component that helps secure the locking clip and ensures the gas tube aligns correctly when the delta ring assembly is engaged. A properly formed spring allows the gas tube to pass straight through.

What happens if an AR-15's weld spring is malformed?

A malformed weld spring can misalign the gas tube, pushing it to one side. This can cause excessive friction or direct strikes on the bolt carrier's key, potentially damaging both the gas tube and the carrier key.

How do you fix a malformed AR-15 weld spring?

The solution is to replace the malformed weld spring with a new, correctly formed one. This involves disassembling the delta ring assembly, removing the old spring and clip, and installing the new components to ensure proper gas tube alignment.

What are the main components of an AR-15 barrel nut assembly mentioned?

The standard AR-15 barrel nut assembly includes the barrel nut itself, the weld spring, the locking clip, and the delta ring. These parts work together to secure the barrel and handguard.

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