Stgw57

Published on February 23, 2026
Duration: 2:24

This guide provides an overview of the Stgw 57 rifle's key features, drawing from expert instruction. It details the unique muzzle device, versatile bipods, adjustable sights, and the roller-delayed blowback action. The assessment highlights its robust construction and historical significance as a Swiss military service rifle.

Quick Summary

The Stgw 57 rifle features a versatile muzzle device acting as both a flash hider and grenade launcher. Its unique bipods offer 360-degree rotation and rearward deployment. The action is a roller-delayed blowback with a straight-pull bolt handle, and the trigger has an extension for use with gloves or grenade launching.

Chapters

  1. 00:00Introduction to the Stgw 57
  2. 00:08Muzzle Device Functions
  3. 00:16Bayonet Lug and Bipods
  4. 00:31Barrel Shroud Functionality
  5. 00:43Adjustable Iron Sights
  6. 00:58Handguard and Carry Handle
  7. 01:06Charging Handle and Action Type
  8. 01:28Fire Selector Settings
  9. 01:35Unique Trigger Mechanism
  10. 02:00Quick-Disconnect Buttstock
  11. 02:11Overall Rifle Assessment

Frequently Asked Questions

What are the primary functions of the Stgw 57's muzzle device?

The Stgw 57's muzzle device serves a dual purpose: it acts as a flash hider to reduce muzzle flash during firing and also functions as an accessory for launching rifle grenades.

How does the Stgw 57's bipod system differ from standard designs?

The Stgw 57 features unique bipods that can rotate a full 360 degrees, offering versatile positioning. Additionally, they can be deployed in a secondary rearward position, which may have been intended for anti-aircraft support.

What type of action does the Stgw 57 utilize, and what is notable about its charging handle?

The Stgw 57 employs a roller-delayed blowback action. Its charging handle is a straight-pull bolt action, a design element inherited from the earlier K31 Swiss military rifle.

What is the significance of the trigger extension on the Stgw 57?

The Stgw 57's trigger features a notable extension. This design is intended to facilitate safe operation when wearing thick winter gloves or when launching rifle grenades, preventing potential finger injury from recoil.

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