Yugo AK SBR in its Natural Habitat

Published on February 14, 2018
Duration: 11:02

This video details the installation and function check of a Midwest Industries optics-ready rail on a Yugo M85NP AK SBR chambered in 5.56. The instructor demonstrates zeroing the optic, testing magazine compatibility, and addresses potential safety issues like 'slip fire' with the original trigger, recommending an aftermarket replacement. The content is geared towards intermediate AK enthusiasts looking to upgrade their firearms.

Quick Summary

The Midwest Industries optics-ready rail for Yugo AKs allows for low-profile optic mounting, offering a lower third co-witness with iron sights. After installation, it's crucial to perform a function check and re-zero your optic. Be aware of potential 'slip fire' issues with original triggers, which can be resolved with aftermarket replacements like the Century RAK trigger.

Chapters

  1. 00:07Introduction
  2. 00:12Button Difficulty
  3. 00:17AK SBR Overview
  4. 00:31M85NP SBR Conversion
  5. 00:36Caliber and Ammunition
  6. 00:50Midwest Industries Optics Rail
  7. 01:14Rail Height and Co-witness
  8. 01:30Optic Mount
  9. 01:37Zero and Function Check Purpose
  10. 01:51Potential Rail Interference
  11. 02:02Environmental Conditions
  12. 02:25Cold Weather Shooting
  13. 02:32Commitment to Content
  14. 02:48AK-47 Rail Installation Video
  15. 02:52M-LOK Version 2
  16. 03:01Short Rail Advantage
  17. 03:15Rail Compromises
  18. 03:20Stock Gas Tube Compatibility
  19. 03:23Yugo Handguard Removal
  20. 03:33Magazine Test
  21. 03:41Testing Objectives
  22. 03:58Function Test
  23. 04:11Magazine Release Issue
  24. 04:17Trigger Upgrade
  25. 04:24Century RAK Trigger
  26. 04:32Slip Fire Issue
  27. 04:50Demonstrating Slip Fire
  28. 05:00Consequences of Slip Fire
  29. 05:08Safety Engagement
  30. 05:15Safety Malfunction Severity
  31. 05:20AK Safety Standards
  32. 05:30Checking Your Firearm
  33. 05:36Causes of Slip Fire
  34. 05:50Yugo Deviations
  35. 06:06AK Sharpness
  36. 06:22Safety Stop Mechanism
  37. 06:31Safety Bypassing Dust Cover
  38. 06:38Yugo Design Differences
  39. 06:41Yugo Design Philosophy
  40. 06:59Additional Magazine Test
  41. 07:02Hex Mag Test
  42. 07:13Shooting Angle
  43. 07:32Bolt Hold Open on Hex Mag
  44. 07:51Unexpected Hex Mag Behavior
  45. 08:00Standard GI Mag Test
  46. 08:04Recommended GI Mags
  47. 08:17Target Engagement
  48. 08:23Fireball Potential
  49. 08:30Steel Target
  50. 08:39Ejection Pattern
  51. 08:56Further Testing
  52. 09:07Seracote Internals
  53. 09:17Purpose of Testing
  54. 09:22Lapping Surfaces
  55. 09:34Surface Preparation
  56. 09:38Upcoming Tests
  57. 09:46Bolt and Trunnion Interaction
  58. 10:04Previous Testing Methods
  59. 10:20Improved Testing Method
  60. 10:28Final Magazine Test
  61. 10:32Outro

Frequently Asked Questions

What is the purpose of the Midwest Industries optics-ready rail on a Yugo AK?

The Midwest Industries optics-ready rail for Yugo AKs allows for the low-profile mounting of optics, providing a lower third co-witness with iron sights. This enables shooters to maintain the ability to use their iron sights while having a red dot or other optic readily available for faster target acquisition.

What is 'slip fire' in an AK rifle and how can it be addressed?

Slip fire in an AK is when the safety lever bypasses the dust cover, potentially causing the hammer to fall. This can be caused by a loose safety lever, improper assembly, or a poorly machined dust cover. Replacing the original trigger with an aftermarket option like the Century RAK trigger can help resolve this issue.

What ammunition is being used in the Yugo AK SBR test?

The Yugo AK SBR is being fired with Fiocchi 223A ammunition, which is described as standard 5.56x45mm ammunition, likely around 55-grain weight, suitable for general shooting and testing.

Are there any specific challenges when installing aftermarket parts on Yugo AKs?

Yes, Yugo AKs often deviate from standard AKM specifications. This can affect parts compatibility and assembly. For instance, the design of the dust cover and safety mechanism on Yugos can differ, potentially leading to issues like 'slip fire' if not properly addressed.

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