The surprising reason the M15 was declared obsolete before production

Published on March 23, 2026
Duration: 1:12

This video from Forgotten Weapons, presented with an authoritative and expert tone, details the surprising obsolescence of the M15 rifle before its production. The M15, adopted from the T-44E5, was deemed unnecessary when the M14, already equipped with a flash hider, was found to perform comparably with the addition of an M2 bipod. This decision, finalized in late 1959, highlights the cost-effectiveness and adaptability considerations in military firearm adoption.

Quick Summary

The M15 rifle was declared obsolete before full production because the M14, when fitted with an M2 bipod, performed comparably. The M14's existing features and adaptability made the M15 seem like an unnecessary expense, leading to its cancellation in December 1959.

Chapters

  1. 00:00M15's Obsolescence Before Production
  2. 00:11M14 with Bipod Matches M15
  3. 00:28M15 Deemed Unnecessary Expense
  4. 00:43M14 as Support Weapon Alternative
  5. 00:50Formal M15 Obsolescence

Frequently Asked Questions

Why was the M15 rifle declared obsolete?

The M15 rifle was declared obsolete before full production because military testing showed the M14 rifle, when equipped with an M2 bipod, performed comparably. The M14 already had features like a flash hider, making the M15 seem like an unnecessary expense and redundant development.

What role did the M14 rifle play in the M15's obsolescence?

The M14 rifle played a crucial role by demonstrating that it could fulfill the intended support weapon role of the M15. By adding an M2 bipod to the M14, it achieved similar performance levels, leading the Marine Corps and Infantry Board to deem the M15 unnecessary and too costly.

When was the M15 rifle officially declared obsolete?

The M15 rifle was formally declared obsolete on December 17, 1959. This decision came after extensive testing and deliberation, with the M2 bipod being adopted just months prior in December 1959, solidifying the M14's role.

What were the key features considered in the M15 vs. M14 comparison?

Key features considered included the M15's heavy barrel and stock modifications versus the M14's existing flash hider. Ultimately, the M14's adaptability with an M2 bipod for support roles was deemed more cost-effective than producing the M15.

More Tactical & Gear Videos You Might Like

More from Forgotten Weapons

View all →