STAR BM9 Surplus

Published on April 9, 2018
Duration: 29:04

This guide details the process of removing the magazine disconnect safety from a Star BM9 pistol. The presenter explains that this modification, common in late 70s/early 80s designs, can improve shooting experience by allowing the hammer to drop without a magazine and enabling magazines to drop free. The process involves careful disassembly and removal of the specific safety component, ultimately leading to a more enjoyable shooting experience and a potentially improved trigger pull.

Quick Summary

The Star BM9 features a magazine disconnect safety, a common safety mechanism from the late 70s/early 80s. Removing this safety allows the pistol to fire without a magazine and ensures magazines drop free, potentially improving the trigger pull. However, potential issues like extractor problems and hammer bite should be considered.

Chapters

  1. 00:34Introduction & Safety
  2. 00:54Magazine Disconnect Safety Issue
  3. 01:30Modifying the Magazine Disconnect
  4. 01:52Post-Modification Functionality
  5. 02:26First Shots & Impressions
  6. 03:19Shooting Performance & Balance
  7. 03:55Cosmetic Condition & Wear
  8. 04:25Sights Review
  9. 04:37Malfunction: Failure to Extract
  10. 04:52Clearing a Jam
  11. 06:01Investigating Extractor Issues
  12. 06:53Surplus Condition Ratings
  13. 08:32Included Accessories & Packaging
  14. 12:30Magazine Malfunction Analysis
  15. 12:54Hammer Bite Concern
  16. 14:16Detailed Sight Description
  17. 15:18One-Handed Shooting & Extraction Issue
  18. 17:06Mechanical Issue: Barrel Link Pin
  19. 19:26Trigger Pull Measurement
  20. 20:03Trigger Design: Pivoting vs. 1911
  21. 21:02Trigger Reset & Feel
  22. 21:33Ejection Pattern
  23. 21:59Hammer Bite Demonstration
  24. 22:34Availability & Pricing
  25. 23:14Target Practice & Safety
  26. 24:05Overall Pistol Assessment
  27. 25:00Final Magazine & Shooting
  28. 25:47Collectible Value & Investment
  29. 27:04Final Thoughts & Recommendation

Frequently Asked Questions

What is the purpose of the magazine disconnect safety on a Star BM9?

The magazine disconnect safety on a Star BM9 prevents the firearm from being fired when the magazine is removed. This was a common safety feature in firearms from the late 1970s and early 1980s, designed to add an extra layer of safety.

How does removing the magazine disconnect safety affect the Star BM9?

Removing the magazine disconnect safety allows the Star BM9 to be fired without a magazine inserted and ensures that magazines will drop free from the magazine well. It can also lead to a slightly improved trigger pull.

What are potential issues with surplus Star BM9 pistols?

Surplus Star BM9 pistols can exhibit cosmetic wear. Functionally, potential issues include extractor problems leading to failures to extract, and a loose barrel link pin that could potentially be pushed out during operation if not careful.

Is the Star BM9 prone to hammer bite?

Yes, the Star BM9 can be prone to hammer bite, especially for individuals with larger hands or those who employ a high grip. This is due to the design's limited beaver tail and the close proximity of the hammer to the hand when the slide cycles.

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