T20 Family: Springfield Makes the Garand a Grenade Launching Sniper Machine Gun

Published on November 17, 2025
Duration: 28:24

The Springfield T20 project aimed to modernize the M1 Garand into a select-fire, magazine-fed rifle capable of mounting a scope and launching grenades. Early prototypes faced challenges with BAR magazine compatibility and full-auto control. Evolutions like the T20E1 and T20E2 introduced closed-bolt operation, roller bearings, and specialized muzzle devices, directly influencing the M14's development before the project was ultimately canceled post-WWII.

Quick Summary

The Springfield T20 project aimed to modernize the M1 Garand into a select-fire, magazine-fed rifle capable of mounting a scope and launching grenades. Evolutions like the T20E1 and T20E2 introduced closed-bolt operation and specialized muzzle devices, directly influencing the M14's development.

Chapters

  1. 00:00Introduction to the T20 Project
  2. 01:20The BAR Magazine Challenge
  3. 03:03T20 Prototype Features
  4. 05:15Select-Fire Mechanism Demonstration
  5. 08:12Internal Comparison and Testing
  6. 11:18The T20E1 Evolution
  7. 14:13T20E1 Magazine and Bolt Hold-Open
  8. 17:03The T20E2 and Grenade Launching
  9. 20:06Project Termination and Legacy
  10. 23:33T20E2 Specific Mechanical Details

Frequently Asked Questions

What was the primary goal of the Springfield T20 project?

The T20 project aimed to modernize the M1 Garand into a select-fire, magazine-fed rifle capable of mounting a scope and launching rifle grenades, essentially creating a versatile infantry weapon.

How did the T20 address compatibility with BAR magazines?

John Garand lengthened the M1 Garand receiver by 3/8 inch to slow the bolt cycle. This modification allowed the faster-cycling Garand action to properly feed from standard 20-round BAR magazines.

What key improvements did the T20E1 introduce over the original T20?

The T20E1 featured a roller bearing on the bolt lug (a feature later used on the M14), switched to closed-bolt operation for all firing modes to improve accuracy, and added a scope mount base to the receiver.

Why was the T20E2 variant developed?

The T20E2 was specifically developed to incorporate the capability of launching rifle grenades, necessitating a redesigned muzzle device compatible with the M7 grenade launcher and a special gas vent plug.

Related News

All News →

More Reviews Videos You Might Like

More from Forgotten Weapons

View all →