Semmerling LM4: The Smallest Repeating .45ACP

Published on April 18, 2020
Duration: 12:09

This guide details the manual cycling technique for the Semmerling LM4, a unique repeating .45 ACP pistol. It covers the two-handed thumb cycle and the manual holster lock mechanism, emphasizing its design as an ultra-compact backup gun. The information is presented with the authority of Ian McCollum of Forgotten Weapons, known for his expertise in rare firearms.

Quick Summary

The Semmerling LM4 is recognized as the smallest repeating .45 ACP pistol ever made. Patented in 1979, it features a unique manual cycling mechanism, as it lacks a recoil spring. The pistol also incorporates a manual holster lock for added security during draws from tight holsters.

Chapters

  1. 00:00Introduction to Semmerling LM4
  2. 00:32History and Production Details
  3. 01:13Design Philosophy and Materials
  4. 02:061979 Market Context and Pricing
  5. 03:09Size Comparison and Manual Cycling
  6. 04:35Safety Features: Holster Lock
  7. 05:51Trigger and Sights Assessment
  8. 07:28Magazine and Slimline Grips
  9. 09:37Cycling Techniques Demonstration
  10. 11:02Conclusion: Modern Relevance

Frequently Asked Questions

What makes the Semmerling LM4 unique among .45 ACP pistols?

The Semmerling LM4 is distinguished as the smallest repeating .45 ACP pistol ever produced. Its unique design features manual cycling of the action, a manual holster lock, and an ultra-compact form factor, making it a notable piece of firearms engineering.

How is the Semmerling LM4 cycled manually?

The Semmerling LM4 lacks a traditional recoil spring. To cycle the action, the user must manually pull the slide rearward, which ejects the spent casing and cocks the hammer. Releasing the slide chambers a new round.

What was the original cost of the Semmerling LM4?

When introduced in 1979, the Semmerling LM4 carried a significant price tag of $645. This made it considerably more expensive than many other .45 ACP pistols available at the time, reflecting its specialized design and construction.

What is the purpose of the manual holster lock on the Semmerling LM4?

The manual holster lock on the Semmerling LM4 is a safety feature designed to prevent the pistol's action from accidentally opening while it is being drawn from a tight-fitting holster. This ensures the firearm remains secure until intentionally deployed.

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