Foxtrot Mike FM-15 First Look

Published on April 11, 2023
Duration: 17:50

This video provides a first look at the Foxtrot Mike FM-15 Gen 2 rifle, highlighting its innovative design features. Key aspects include a non-traditional rear-folding mechanism, an integrated charging handle system that allows firing with the stock folded, and a unique dual-spring recoil system. The review details the rifle's robust barrel attachment with a tapered barrel nut and a pinned, lugged gas block, along with its intermediate gas system and a three-position adjustable gas block on the Rainier Arms exclusive model. Functionality, reliability with approximately 600 rounds, and accuracy with various ammunition types are discussed, along with the modularity offered by the upper receiver and rail adapter.

Quick Summary

The Foxtrot Mike FM-15 Gen 2 features a unique integrated charging handle system that allows the firearm to cycle and be fired even with the stock folded. Its barrel attachment uses a robust tapered barrel nut and a pinned, lugged gas block for enhanced durability and alignment.

Chapters

  1. 00:00Introduction to Foxtrot Mike FM-15 Gen 2
  2. 00:14Unique Charging Handle and Folding Mechanism
  3. 00:48Initial Disassembly and Internal Design
  4. 01:03Foxtrot Mike's Industry Role
  5. 01:35Disclosure and Rainier Arms Exclusive
  6. 01:50Firearm Configuration and Optics Pairing
  7. 02:32Functionality and Reliability Testing
  8. 03:08Accuracy Testing with Various Ammunition
  9. 03:58Deep Dive: Receiver and Operating System
  10. 04:31Dual Spring Recoil System Explained
  11. 04:51Carrier and Bolt Assembly Details
  12. 05:33Direct Impingement System and Charging Rod
  13. 06:08Upper Receiver Features (No Forward Assist)
  14. 06:42Upper to Rail Fit and Anti-Rotation Tab
  15. 07:10Barrel Nut and Receiver Interface
  16. 07:19Innovative Barrel and Barrel Nut Design
  17. 08:39Gas Block Attachment and Alignment
  18. 09:44Barrel System Summary
  19. 09:59Intermediate Gas System and Adjustable Gas Block
  20. 10:12Three-Position Adjustable Gas Block Functionality
  21. 10:45Adjustable Gas Block Testing (Suppressed/Unsuppressed)
  22. 11:24Muzzle Device and Suppressor Compatibility
  23. 11:52Charging Handle Design and Operation
  24. 12:12Reversible Charging Handle Adjustment
  25. 12:47Upper Receiver Availability
  26. 13:01Rail Adapter for Lower Receivers
  27. 13:21Rail Adapter Construction and Installation
  28. 14:16Compatibility with Standard Lower Receivers
  29. 14:28Complete Rifle Package
  30. 14:33Billet Lower Receiver Features
  31. 14:53Fire Controls and Furniture (Placeholder)
  32. 15:19Stock Options (Upper vs. Complete Rifle)
  33. 15:40Potential Upgrades (Trigger, Grip)
  34. 16:02Pricing and Availability (Rainier Arms Exclusive)
  35. 16:20Foxtrot Mike's Manufacturing Expertise
  36. 16:36Viewer Engagement and Future Configurations
  37. 17:01Q&A and Support Channels

Frequently Asked Questions

What makes the Foxtrot Mike FM-15 Gen 2's charging system unique?

The FM-15 Gen 2 features an integrated charging handle system located at the rear, eliminating the traditional AR-15 charging handle. This design allows the firearm to cycle and be fired even when the stock is folded, a significant departure from standard AR platforms.

How is the barrel and gas block attached on the Foxtrot Mike FM-15?

The FM-15 utilizes a robust barrel attachment system with a large, tapered barrel nut that creates an interference fit with a matching taper on the barrel. The gas block is further secured with pins and a lug system that interfaces with the barrel, preventing rotation and ensuring durability.

What are the benefits of the intermediate gas system and adjustable gas block on the Rainier Arms exclusive FM-15?

The intermediate gas system provides a softer shooting experience. The three-position adjustable gas block allows users to fine-tune gas pressure for optimal function with and without suppressors, reducing over-gassing and improving shooting comfort.

Can the Foxtrot Mike FM-15 Gen 2 be used with standard AR-15 lower receivers?

Yes, the FM-15 Gen 2 upper receiver is compatible with standard AR-15 lower receivers. It includes a specialized rail adapter that allows for the attachment of various braces or stocks, ensuring broad compatibility.

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