This Gun is a Mechanical Marvel

Published on October 27, 2025
Duration: 20:50

This review delves into the intricate mechanics of the Ounce Pistol, a unique folding .22LR firearm. The presenter provides a detailed disassembly, revealing the complex bolt and barrel assembly, the fixed magazine system, and the innovative long-stroke recoil operation. Key features highlighted include the tilting bolt system, the integrated chamber indicator using the firing pin, and a novel cartridge feeding mechanism.

Quick Summary

The Ounce Pistol is a unique folding .22 Long Rifle firearm featuring a fixed 10-round magazine and a long-stroke recoil operation. It employs an innovative tilting bolt system and an integrated firing pin-based chamber indicator, distinguishing it from typical blowback .22LR designs.

Chapters

  1. 00:00Introduction to the Ounce Pistol
  2. 00:35Disassembly: Releasing the Grip and Magazine
  3. 01:01Opening the Side Cover and Accessing Internals
  4. 01:15Bolt and Barrel Assembly Overview
  5. 01:55Detailed Look at the Bolt Mechanism
  6. 02:32Tilting Bolt System and Locking Mechanism
  7. 03:19Cartridge Feeding System Explained
  8. 04:20The 'Flip-Flop' Cartridge Feed System
  9. 07:57Ensuring Bolt Lock with Spring Bias
  10. 08:22Chambering Procedure Demonstration
  11. 09:40Bolt Hold Open Mechanism
  12. 09:43Fire Control Group and Safety Plunger
  13. 10:45Unidentified Handle Switch Function
  14. 11:52Brass Deflector Flaps
  15. 11:80Ejection Mechanism: Feed Tray as Ejector

Frequently Asked Questions

What caliber is the Ounce Pistol and how does it operate?

The Ounce Pistol is chambered in .22 Long Rifle and operates semi-automatically using a long-stroke recoil system. It is notable for not using a blowback system, which is uncommon for this caliber.

How does the Ounce Pistol indicate if a round is chambered?

The Ounce Pistol features an integrated in-chamber indicator system that utilizes the firing pin. When a round is chambered, the firing pin is pushed back, allowing the bolt to lock. If no round is present, a block attached to the firing pin prevents the bolt from locking.

What is unique about the Ounce Pistol's feeding and ejection system?

The Ounce Pistol employs a complex 'flip-flop' or toggle system to bring rounds from its fixed magazine into position. Ejection is handled by the feed tray itself, which acts as an ejector, striking and flinging spent casings out of the firearm.

How does the Ounce Pistol achieve its compact folded size?

The Ounce Pistol is designed to fold into a very compact form. The handle and barrel assembly retract and fold, significantly reducing its overall dimensions for portability, though the bolt does not lock to the rear in the fully folded position.

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