Tech Tip: Upgrading the AK (ZPAP M70)

Published on June 18, 2025
Duration: 45:41

This video provides a detailed, step-by-step guide on upgrading a Zastava ZPAP M70 AK rifle. It covers the installation of an ALG trigger and a US Palm AK grip, demonstrating the process of removing and replacing internal fire control components and the pistol grip. The guide emphasizes careful handling of small parts and proper reassembly for a functional firearm.

Quick Summary

To install an ALG trigger on a Zastava ZPAP M70 AK, first ensure the rifle is unloaded. Remove the top cover, recoil spring, and bolt carrier. Depress the hammer, remove the safety selector, and then remove the retaining plate. Drive out the hammer and trigger pins, remove the old FCG, and install the new ALG trigger, hammer, and disconnector. Reinstall pins, retaining plate, and safety selector, followed by a function check.

Chapters

  1. 00:09Introduction & ZPAP M70 Overview
  2. 00:46Removing the Old Trigger Assembly
  3. 01:19Disassembling the Fire Control Group
  4. 04:16Removing Hammer and Trigger Pins
  5. 07:49Preparing the New ALG Trigger Components
  6. 09:59Fitting the New Trigger and Safety Selector
  7. 11:40Installing the Trigger Roll Pin
  8. 16:51Installing the Full Trigger Assembly
  9. 17:23Installing the US Palm AK Grip
  10. 20:32Reassembling the Fire Control Group
  11. 25:08Finalizing Trigger Assembly & Function Check
  12. 26:05Installing the JMAC Custom Stock Adapter & Triangle Stock
  13. 32:26Installing RS Regulate Optic Mount & Trijicon MRO
  14. 41:46Installing Sons of Liberty Gunworks NOX Muzzle Device
  15. 45:17Final Build Recap & Range Prep

Frequently Asked Questions

What are the key steps to installing an ALG trigger on a Zastava ZPAP M70 AK?

First, ensure the rifle is unloaded. Then, remove the top cover, recoil spring, and bolt carrier. Depress the hammer, remove the safety selector, and then remove the retaining plate. Drive out the hammer and trigger pins, remove the old FCG, and install the new ALG trigger, hammer, and disconnector. Reinstall pins, retaining plate, and safety selector, followed by a function check.

How do you remove the trigger and hammer pins on an AK-style rifle like the ZPAP M70?

After removing the retaining plate, use a punch and hammer to drive out the hammer pin first, maintaining tension on the hammer. Then, drive out the trigger pin. The pins are typically driven from the side that allows for easier removal of the component they retain.

What is the purpose of the retaining plate in an AK's fire control group?

The retaining plate is a crucial component that secures the trigger and hammer pins within the receiver. It prevents these pins from walking out during operation, which would cause the fire control group to malfunction or disassemble unintentionally.

Can I install a US Palm grip on a Zastava ZPAP M70 AK?

Yes, the US Palm AK grip is compatible with the Zastava ZPAP M70. The installation involves removing the old grip screw and installing the new grip with the provided screw and washers, ensuring it is tightened securely.

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