From the Vault: AKM 7.62x39 (Khyber Pass)

Published on June 12, 2018
Duration: 8:00

This guide details the installation and tuning of a Dead Air Silencers Wolverine PBS-1 suppressor on a Khyber Pass-style AKM, incorporating a KNS Precision Adjustable Gas Piston. Expert Gary Hughes explains how to address common AK suppressor challenges like non-concentric threads and over-gassing for a smoother shooting experience.

Quick Summary

Suppressing an AKM involves overcoming non-concentric barrel threads and over-gassing. The Dead Air Wolverine PBS-1 features a tapered bore to prevent baffle strikes, while a KNS adjustable gas piston allows tuning to reduce gas blowback, creating a smoother shooting experience.

Chapters

  1. 00:14Intro: Khyber Pass AKM Explained
  2. 01:14Historical Origin of Khyber Pass AKM
  3. 02:18Modern Khyber Pass AKM Builds
  4. 03:10KNS Adjustable Gas Piston Installation
  5. 04:06Dead Air Wolverine PBS-1 Suppressor Design
  6. 05:16Addressing AK Suppressor Challenges
  7. 07:07Back Pressure Management & Conclusion

Frequently Asked Questions

What is a Khyber Pass AKM variant?

A Khyber Pass AKM variant typically refers to an AKM or AK-47 rifle, often modified in the United States, featuring a side-folding stock. These are custom builds inspired by modifications made in the Khyber Pass region, known for their improvisational gunsmithing.

How does the Dead Air Wolverine PBS-1 address AK suppressor issues?

The Wolverine PBS-1 uses a tapered bore design to prevent baffle strikes on AK barrels with non-concentric threads. Its low back-pressure design also helps mitigate excessive gas blowback common with suppressed AKs.

Why is an adjustable gas piston important for suppressed AKs?

An adjustable gas piston, like the KNS Precision model, allows the shooter to fine-tune the gas system. This is crucial for managing the increased gas pressure from suppressed fire, reducing blowback and improving cycling reliability.

What are the main challenges when suppressing an AK-47 or AKM?

The primary challenges are non-concentric barrel threads, which can cause suppressor baffle strikes, and the inherent over-gassing of the AK platform, leading to significant gas blowback when suppressed.

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