From the Vault: AKM 7.62x39 (Khyber Pass)

Published on June 12, 2018
Duration: 8:00

This video details the creation of a 'Khyber Pass' style AKM, focusing on a side-folding stock and suppressed fire. Gary Hughes from Dead Air Silencers and MOD Outfitters demonstrates how to build a lightweight, portable AKM by converting a Romanian WASR. Key modifications include installing a KNS adjustable gas piston for tunable gas system performance and mounting a Dead Air Wolverine PBS-1 suppressor, specifically designed to address common AK suppressor challenges like non-concentric threads and over-gassing.

Quick Summary

The Khyber Pass AKM is a custom build, often featuring a side-folding stock and stamped receiver, originating from improvised modifications. The Dead Air Wolverine PBS-1 suppressor uses a tapered bore to prevent baffle strikes on non-concentric AK threads, while a KNS adjustable gas piston helps manage over-gassing for smoother suppressed fire.

Chapters

  1. 00:14Introduction to Khyber Pass AKM
  2. 00:39Defining Khyber Pass AKM
  3. 01:14Historical Origin of Khyber Pass AKM
  4. 02:18Modern Khyber Pass AKM Builds
  5. 03:10KNS Adjustable Gas Piston
  6. 04:06Dead Air Wolverine PBS-1 Suppressor Design
  7. 05:16Addressing AK Suppressor Challenges
  8. 07:07Back Pressure Management and Conclusion

Frequently Asked Questions

What is a Khyber Pass AKM variant?

A Khyber Pass variant AKM typically refers to an AKM or AK-47 with a stamped sheet metal receiver and a side-folding stock. Globally, it signifies improvised rifle modifications made by gunsmiths in the Khyber Pass region, often using various materials.

How can AK suppressor challenges like non-concentric threads be overcome?

The Dead Air Silencers Wolverine PBS-1 addresses non-concentric AK barrel threads with a unique tapered bore design, shaped like a funnel, which virtually eliminates the risk of baffle strikes common with conventional suppressors.

What is the purpose of a KNS adjustable gas piston on an AKM?

A KNS adjustable gas piston allows users to precisely tune the gas system of an AKM. This is crucial for optimizing performance when firing suppressed or unsuppressed, and helps manage the over-gassing inherent in many AK platforms.

Why are AKs considered over-gassed when suppressed?

AK platforms are known for being over-gassed, meaning they expel a large amount of gas. When a suppressor is added, this excess gas is trapped, leading to significant and often unpleasant gas blowback into the shooter's face.

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