Mean Arms Bearing Delayed Upper

Published on November 2, 2023
Duration: 10:18

The Mean Arms Bearing Delayed Upper Receiver offers a significant improvement over traditional 9mm PCCs by utilizing a bearing-delayed blowback system. This system, featuring ball bearings with increased contact surface area, significantly reduces felt recoil and smooths the shooting impulse, making it easier to achieve rapid, accurate follow-up shots. The upper is compatible with standard mil-spec lowers and PMAGs using included EndoMag guts, allowing for easy caliber swaps and a streamlined setup for competitive shooting or range practice.

Quick Summary

The Mean Arms Bearing Delayed Upper Receiver revolutionizes 9mm carbines with its bearing-delayed blowback system, significantly reducing felt recoil for a smoother shooting experience. It offers tunable dwell time via interchangeable lifters and boasts compatibility with standard mil-spec lowers using EndoMag guts, making it ideal for competitive shooting and range practice.

Chapters

  1. 01:02Introduction to Mean Arms Bearing Delayed Upper
  2. 01:17Game Changer for 9mm Carbines
  3. 01:38IV8888 YouTube Shoot Experience
  4. 01:51Tunable Dwell Time with Lifters
  5. 02:01Shoutout to NFA Ammo
  6. 02:22Bearing Delayed System Explained
  7. 02:50Key Feature: Interchangeable Lifters
  8. 03:06Compatibility with Mil-Spec Lowers
  9. 03:19EndoMag Guts Included
  10. 03:40Versatility with Different Lowers
  11. 03:57Favorite Setup: Mil-Spec Lower + EndoMags
  12. 04:09Easy Swap to 5.56 Upper
  13. 04:32EndoMag Fit in Standard Pouches
  14. 04:52Available Barrel Lengths
  15. 05:04Polymer Handguard Feature
  16. 05:17Competitive Muzzle Brake
  17. 05:34Polymer Handguard Details
  18. 06:07Heat Reflection of Polymer
  19. 06:31Handguard Rigidity and Durability
  20. 07:13Upper Receiver Features
  21. 07:27Disassembly for Bolt Inspection
  22. 07:31Bearing Delay Bolt Inspection
  23. 07:43Ball Bearing Interface Explained
  24. 08:0050% More Contact Area
  25. 08:13Multiple Lifters for Tuning
  26. 08:46Shooting Impressions
  27. 08:56IV8888 Shoot Reliability
  28. 09:17Personal Sample Reliability
  29. 09:28Comparison to 5.56 Recoil
  30. 09:36Smoother Than Direct Blowback
  31. 09:48100% Functionality
  32. 09:54Subscribe for More Content
  33. 10:05Final Recommendation

Frequently Asked Questions

What is the primary advantage of the Mean Arms Bearing Delayed Upper Receiver?

The main advantage is its bearing-delayed blowback system, which uses ball bearings to significantly reduce felt recoil and create a smoother shooting impulse compared to traditional 9mm PCCs.

How does the Mean Arms Bearing Delayed Upper improve shooting performance?

It smooths out the recoil impulse, making it easier to control the firearm, achieve faster follow-up shots, and transition between targets more effectively, akin to shooting a finely tuned 5.56 rifle.

What is the compatibility of the Mean Arms Bearing Delayed Upper with standard AR-15 lowers?

It is highly compatible with standard mil-spec AR-15 lowers, utilizing included EndoMag guts to convert PMAGs for 9mm use, and features an integrated ejector in the bolt.

Can the Mean Arms Bearing Delayed Upper be tuned for different ammunition?

Yes, the system comes with multiple interchangeable 'lifters' that allow users to adjust and tune the dwell time, optimizing performance for various ammunition types, from light loads to heavier suppressed rounds.

What materials are used in the Mean Arms Bearing Delayed Upper's handguard?

The handguard is constructed from a heat-resistant polymer, reinforced with a steel ring at the mating surfaces. This design helps reflect and redirect heat, keeping the handguard cool during firing.

More Reviews Videos You Might Like

More from 704 TACTICAL

View all →