New Delayed Blowback Just Dropped

Published on December 24, 2023
Duration: 20:46

This guide details the installation and initial testing of the Mean Arms Bearing-Delayed Upper receiver, paired with a Hoffman Tactical 3D-printed lower. It covers mounting the upper, configuring accessories, and performing function checks before live-fire testing at a range. The video emphasizes the recoil reduction benefits of the bearing-delayed system compared to traditional blowback 9mm AR platforms.

Quick Summary

The Mean Arms Bearing-Delayed Upper significantly reduces recoil and muzzle climb in 9mm AR-15 platforms by using a mechanical bearing delay system. This offers a smoother shooting experience compared to standard blowback systems and retains familiar AR-15 controls, including last-round bolt hold open.

Chapters

  1. 00:00Introduction and Channel Promotion
  2. 00:41Shooting Demonstration
  3. 01:26Product Introduction: Mean Arms Upper and Hoffman Lower
  4. 02:01Technical Overview: Bearing-Delayed System
  5. 03:37Upper Receiver Features
  6. 05:11Build Configuration
  7. 06:38Recoil Comparison: Bearing-Delayed vs. Standard Blowback
  8. 09:23Comparison with MP5
  9. 10:06Final Thoughts and Pricing

Frequently Asked Questions

What is a bearing-delayed blowback system?

A bearing-delayed blowback system uses bearings to mechanically slow the bolt carrier group's rearward movement. This delay reduces felt recoil and muzzle climb, offering a smoother shooting experience compared to traditional blowback systems, especially in 9mm AR platforms.

How does the Mean Arms Bearing-Delayed Upper reduce recoil?

The Mean Arms upper employs a bearing-delayed blowback mechanism. This system slows down the bolt's cycling speed, which directly translates to less felt recoil and a more stable shooting platform, making follow-up shots faster and more accurate.

What are the benefits of the Mean Arms Bearing-Delayed Upper over a standard 9mm AR-15?

The primary benefit is significantly reduced recoil and muzzle climb. It also offers familiar AR-15 controls, including last-round bolt hold open, and can be tuned for various ammunition types, providing a more refined shooting experience than typical 9mm blowback ARs.

Can I use a 3D-printed lower receiver with the Mean Arms Bearing-Delayed Upper?

Yes, the video demonstrates compatibility with the Hoffman Tactical SL-15 3D-printed lower receiver, made from Polymaker PLA Pro. This highlights the growing integration of 3D printing technology with innovative firearm components.

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