The BEST SMG in Call of Duty MW2 - FSS Hurricane - AR57 rifle

Published on January 25, 2023
Duration: 17:59

This guide details the installation of the AR57 upper receiver assembly onto a standard AR15 lower receiver. The AR57 utilizes P90 magazines for the 5.7x28mm cartridge, offering a unique carbine conversion. The process involves replacing the buffer assembly and pinning the upper to the lower, with the bolt being a simple blowback design. The video emphasizes the unregulated nature of the upper receiver kit and its appeal for those seeking a 5.7 carbine.

Quick Summary

The AR57 upper receiver assembly is a conversion kit that attaches to a standard AR15 lower, allowing it to use P90 magazines and the 5.7x28mm cartridge. It operates on a simple straight blowback system and is considered unregulated, often shippable directly to your home.

Chapters

  1. 00:00Introduction & YouTube Policy Changes
  2. 00:51AR57 Overview & Design
  3. 01:31Assembly Process & Components
  4. 02:19Field Stripping & Maintenance
  5. 03:17Magazine Insertion & Operation
  6. 03:42Ergonomic Quirks & P90 Comparison
  7. 04:055.7x28mm Cartridge Ballistics
  8. 05:13Ballistic Performance Comparison (5.7 vs 5.56)
  9. 06:13Availability & Pricing
  10. 07:19Pros, Cons, and Fun Factor
  11. 08:15Future of 5.7 Cartridge & Conclusion

Frequently Asked Questions

What is the AR57 upper receiver assembly?

The AR57 upper receiver assembly is a conversion kit that allows you to attach it to a standard AR15 lower receiver. It enables the use of P90 magazines and the 5.7x28mm cartridge, effectively turning your AR15 into a 5.7 carbine.

How does the AR57 operate?

The AR57 operates using a simple straight blowback system. This means it does not require a gas key or a complex locking mechanism, making it mechanically straightforward and reliable.

Is the AR57 upper receiver considered a firearm?

No, the AR57 upper receiver kit itself is not considered a firearm. This means it is unregulated and can often be shipped directly to your home without the same restrictions as a complete firearm.

What are the advantages of the AR57 conversion?

The primary advantages include gaining access to the 5.7x28mm cartridge in a carbine platform, a more affordable entry point compared to an FN P90, and the ability to use familiar AR15 ergonomics with a unique top-mounted magazine system.

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