TRIARC 16” AR-15 Upper – Specs, Inspection, and Range Test

Published on May 1, 2025
Duration: 11:52

This video provides a comprehensive review of a TRIARC 16-inch AR-15 upper receiver. It details technical specifications, conducts bench inspections including BCG gauging and barrel measurements, and performs a range test with three different ammunition types (PMC XTAC M193, IMI Razor Core 77gr, Hornady 73gr ELD Match). The review includes 30-shot group analysis, velocity data, and comparative performance metrics, offering insights into the upper's accuracy potential with various loads.

Quick Summary

The TRIARC 16-inch AR-15 upper features a 4150 chromoly vanadium steel barrel with a 1:7 twist and nitride treatment. In range tests at 100 yards, it produced a 30-shot group of 1.804 MOA with Hornady 73gr ELD Match, its best performance among tested ammunition.

Chapters

  1. 00:00Introduction and Sponsor
  2. 00:43TRIARC 16" Upper Overview
  3. 01:34Bench Inspection: BCG Gauging
  4. 01:55Bench Inspection: Barrel Gauging
  5. 02:04Bench Inspection: Barrel Gauging (Continued)
  6. 02:37Bench Inspection: Borescope
  7. 03:14Shooting Setup and Range Protocol
  8. 04:04Range Test: 30-Shot Group Methodology
  9. 04:28Range Test: PMC XTAC 55gr M193 Group
  10. 05:03PMC XTAC 55gr M193 Results Analysis
  11. 06:02PMC XTAC M193 Leaderboard Comparison
  12. 06:41Range Test: IMI 77gr Razor Core Group
  13. 07:05IMI 77gr Razor Core Results Analysis
  14. 08:00IMI 77gr Razor Core Leaderboard Comparison
  15. 08:30Range Test: Hornady 73gr ELD Match Group
  16. 08:57Hornady 73gr ELD Match Results Analysis
  17. 09:51Hornady 73gr ELD Match Leaderboard Comparison
  18. 10:15Overall TRIARC Upper Results
  19. 10:50Final Thoughts and Caveats
  20. 11:33Upcoming Content Preview

Frequently Asked Questions

What are the key specifications of the TRIARC 16-inch AR-15 upper receiver?

The TRIARC 16-inch upper features a 4150 chromoly vanadium steel barrel with a 5.56 NATO chamber, 1:7 twist rate, and mid-length gas system. It has a 0.750" gas block journal and is nitride treated inside and out. The 15-inch M-LOK handguard includes QD sling mounts.

How did the TRIARC 16-inch upper perform with different ammunition types?

In 30-shot groups at 100 yards, the TRIARC upper achieved 3.139 MOA with PMC XTAC 55gr M193, 2.399 MOA with IMI 77gr Razor Core, and 1.804 MOA with Hornady 73gr ELD Match. The Hornady load yielded the tightest group.

What were the results of the bench inspection for the TRIARC upper?

Bench inspection included BCG gauging, with specific bore acceptances noted. Barrel measurements showed a gas block journal of 0.74940" and a throat erosion of 1. Borescope revealed fire cracking at the throat and slight erosion at the gas port.

What testing methodology was used for the TRIARC upper's range test?

The test involved firing 30-shot groups consecutively over ~4 minutes at 100 yards to simulate match conditions. Velocity data was collected via a Garmin GDC1 Pro Chronograph, and rifle stability was monitored with a Mantis X10 Elite.

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