How Does it Work: Long Stroke Gas Piston

Published on March 16, 2025
Duration: 1:00

This video explains the mechanics of the long-stroke gas piston system, commonly found in firearms like the AK-47 and AKM. It details how gas pressure from firing drives a piston, which is integrated with the bolt carrier, to cycle the action for the full length of its travel. The explanation contrasts this with short-stroke systems where the piston is a separate component.

Quick Summary

A long-stroke gas piston system integrates the piston, operating rod, and bolt carrier into one component. Gas pressure drives this unit rearward for the full length of the action, cycling firearms like the AK-47 and AKM.

Chapters

  1. 00:00Introduction to Gas Port and Block
  2. 00:13Firing Mechanism and Piston Travel
  3. 00:28Long Stroke vs. Short Stroke Systems
  4. 00:53Gas Pressure Duration Explained

Frequently Asked Questions

What is a long-stroke gas piston system?

A long-stroke gas piston system is a firearm operating mechanism where the gas piston and operating rod are integrated into a single component with the bolt carrier. This combined unit travels the full length of the action when cycling.

How does a long-stroke gas piston system work?

Upon firing, gas tapped from the barrel enters a cylinder, pushing the integrated piston and bolt carrier assembly rearward for the entire stroke, cycling the firearm.

What is the main difference between long-stroke and short-stroke pistons?

In a long-stroke system, the piston and bolt carrier move together for the full action length. In a short-stroke system, the piston is a separate component that strikes the bolt carrier, moving a shorter distance.

Which firearms use a long-stroke gas piston system?

The long-stroke gas piston system is famously used in the AK-47 and its variants like the AKM, known for their reliability.

Related News

All News β†’

More General Videos You Might Like

More from Forgotten Weapons

View all β†’