4 inches Is Not Enough…

Published on March 11, 2026
Duration: 0:34

This video provides an expert review of the PSA Gen 4 AR9, focusing on its limitations regarding accessory mounting due to the barrel length and handguard design. The instructor, demonstrating experienced authority, highlights issues with attaching M-LOK accessories and specific light/hand stop options. While critical of certain design choices, the overall assessment suggests it's a "nice little setup" with potential for improvement.

Quick Summary

The PSA Gen 4 AR9's 4-inch barrel and handguard design present significant limitations for accessory mounting, as the handguard covers the flash hider. This restricts the use of standard M-LOK accessories, forcing users to opt for specific solutions like the Inforce weapon light shown. Despite these drawbacks, the firearm is considered a "nice little setup" by an experienced instructor.

Chapters

  1. 00:00PSA AR9 Intro & Barrel Issue
  2. 00:16Accessory Mounting Limitations
  3. 00:28Overall Assessment

Frequently Asked Questions

What are the main drawbacks of the PSA Gen 4 AR9 mentioned in the video?

The primary drawback highlighted is the 4-inch barrel combined with the handguard design, which covers the flash hider and leaves insufficient space for mounting standard M-LOK accessories like lights or hand stops.

What accessories were shown mounted on the PSA Gen 4 AR9?

The PSA Gen 4 AR9 was shown equipped with a Holosun red dot optic and an Inforce weapon light, indicating these are among the few compatible options due to the firearm's design limitations.

Why is accessory mounting difficult on the PSA Gen 4 AR9?

The handguard extends over the flash hider, reducing the available rail space. This configuration makes it challenging to attach common M-LOK accessories without specific, often limited, solutions.

What is the expert's overall opinion on the PSA Gen 4 AR9?

Despite the critical assessment of its accessory mounting limitations, the instructor, who is experienced, considers the PSA Gen 4 AR9 a "nice little setup" overall, suggesting it has potential despite its design flaws.

Related News

All News →

More Tactical & Gear Videos You Might Like

More from Elliott Delp

View all →