PBS-1 Soviet AK Silencer (the Original, not the Dead Air One)

Published on February 13, 2026
Duration: 13:42

This expert-level review details the original Soviet PBS-1 suppressor for the AK platform. It covers the suppressor's unique design, including its rear rubber baffle and oversized bore, and its reliance on specialized subsonic ammunition for proper cycling. The video also highlights the development history and specialized rear sights required for suppressed fire.

Quick Summary

The original Soviet PBS-1 suppressor for the AK features a unique rear-mounted rubber baffle (wipe) that traps gas to increase back pressure, enabling reliable cycling with subsonic ammunition. It also has an oversized bore to prevent baffle strikes and requires specialized 194-grain 7.62x39mm subsonic ammunition.

Chapters

  1. 00:00Introduction to PBS-1 Suppressor
  2. 01:00Development and History
  3. 03:11Mounting and Removal
  4. 03:51Internal Components
  5. 05:09Cycling with Subsonic Ammo
  6. 06:53Specialized Subsonic Ammunition
  7. 09:04Oversized Bore Design
  8. 11:36Specialized Rear Sights

Frequently Asked Questions

What makes the Soviet PBS-1 suppressor unique compared to modern designs?

The PBS-1's most unique feature is its rear-mounted solid rubber baffle (wipe), designed to trap gas and increase back pressure for reliable AK cycling with subsonic ammunition. It also has an oversized bore to prevent baffle strikes on potentially non-concentric threads.

What type of ammunition is required for the PBS-1 suppressor to function correctly?

The PBS-1 requires specialized 194-grain 7.62x39mm subsonic ammunition, traveling at 950-1000 fps. This ammo is identifiable by green and black stripes on the bullet tip and was primarily produced at Factory 711.

How does the PBS-1 suppressor attach to an AK rifle?

The PBS-1 uses left-hand threads, specifically 14x1L. Interestingly, it lacks a locking notch for the AK's detent pin, relying on the rifling twist to tighten it during firing.

What is the lifespan of the rubber baffles in a PBS-1 suppressor?

The solid rubber baffles, or wipes, within the PBS-1 suppressor have a limited operational lifespan. They are designed to last approximately 200 rounds before they need to be replaced to maintain optimal performance and reliability.

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