What breaks most on a Troy A4 and what parts should you keep on hand?

Published on February 24, 2026
Duration: 1:17

This expert guide from Gun For Hire Range details common failure points on the Troy A4 rifle, crucial for owners in New Jersey. It emphasizes proactive replacement of high-wear parts like magazines, hammer springs, and bolts, recommending keeping spares on hand to ensure reliability, especially for firearms experiencing high-volume use.

Quick Summary

The Troy A4 rifle commonly experiences failures with AR-style magazines (follower issues), hammer springs (broken legs), trigger packs (hammer follow), extractors, ejectors, firing pins (chipped ends), bolts (cracking near cam pin hole), charging handles (worn latches), and gas tubes. Keeping spares for these high-wear items is crucial for reliability, especially for rental firearms.

Chapters

  1. 00:00Troy A4 Overview & New Jersey Rental
  2. 00:07Magazine Failures & Spares
  3. 00:17Hammer Spring & Trigger Pack Issues
  4. 00:31Extractor & Ejector Maintenance
  5. 00:42Firing Pin & Bolt Weaknesses
  6. 00:55Charging Handle Wear and Malfunctions
  7. 01:06Gas Tube as a Failure Point
  8. 01:14Conclusion: Common Failures at Gun For Hire

Frequently Asked Questions

What are the most common failure points on a Troy A4 rifle?

The most common failure points on a Troy A4 include AR-style magazines (followers), hammer springs, trigger pack components, extractors, ejectors, firing pins, bolts (especially around the cam pin hole), charging handles, and gas tubes. Proactive replacement and keeping spares are recommended.

Which parts should I keep on hand as spares for a Troy A4?

For a Troy A4, it's advisable to keep spares for high-wear items like AR-style magazines, hammer springs, firing pins, bolts, and charging handles. Gas tubes are also noted as high-use items, particularly on rental guns.

Why are gas tubes considered a failure point on AR-style rifles?

Gas tubes on AR-style rifles, especially those used in high-volume settings like rental guns, are designed as an intended failure point. This means they are expected to wear out or fail before more critical and expensive components of the rifle are damaged.

What causes double feeds or failures to feed in AR-style magazines?

Double feeds or failures to feed in AR-style magazines are often caused by damaged or worn followers. These followers can get 'chewed up,' leading to the bolt not locking open correctly and causing feeding malfunctions.

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