Field Stripping the Fightlite MCR (MCR part 3)

Published on October 11, 2019
Duration: 7:46

This guide details the field stripping process for the Fightlite MCR upper receiver, highlighting its unique features compared to a standard AR-15. Key steps include separating the upper, removing the top cover, disengaging the quick-change barrel mechanism, and then proceeding with BCG removal, firing pin, and cam pin extraction. The process emphasizes the proprietary bolt carrier group and the piston-driven operation.

Quick Summary

The Fightlite MCR upper receiver features a quick-change barrel system activated by a spring-loaded lever. To remove the barrel, press this lever down, and the barrel will pop out. The MCR also uses a proprietary bolt carrier group without gas rings, designed for its piston operation.

Chapters

  1. 00:00Introduction to Fightlite MCR
  2. 00:41Upper Receiver Disassembly Begins
  3. 01:08Separating Upper and Lower Receivers
  4. 01:46Accessing the Feed Tray
  5. 01:55Quick Change Barrel System
  6. 02:03Operating Barrel Release Lever
  7. 02:59Piston System Overview
  8. 03:18Top Cover and Feed Paw System
  9. 03:43Removing the Bolt Carrier Group
  10. 04:30Fightlite MCR Bolt Carrier Group
  11. 05:01Firing Pin Retaining Pin Removal
  12. 05:26Firing Pin and Cam Pin Removal
  13. 05:42Reassembly: Cam Pin and Firing Pin
  14. 06:06Reassembly: Bolt Carrier Group
  15. 06:25Reinstalling BCG and Top Cover
  16. 07:00Reinstalling Barrel and Upper Receiver
  17. 07:18Conclusion and MCR Overview

Frequently Asked Questions

How do you remove the barrel from the Fightlite MCR upper receiver?

To remove the barrel from the Fightlite MCR upper receiver, first ensure the firearm is unloaded. Then, locate the spring-loaded quick-change barrel lever on the side of the upper receiver. Press this lever down, and the barrel will pop out, allowing for easy removal.

What makes the Fightlite MCR bolt carrier group different from a standard AR-15?

The Fightlite MCR uses a proprietary bolt carrier group (BCG) designed for its piston system. Unlike standard AR-15 BCGs, it does not have gas rings, which allows it to operate without the associated resistance and fouling from gas blowback.

Can I use any AR-15 lower receiver with the Fightlite MCR upper?

Yes, the Fightlite MCR upper is compatible with any mil-spec AR-15 lower receiver. However, the bolt catch and release paddle on the lower will be shaved off to accommodate a wider shelf on the MCR upper that supports its unique feeding system.

What are the common issues with accessory mounting on the Fightlite MCR?

Some users have reported that accessories mounted via KeyMod or M-LOK rails on the Fightlite MCR can rattle loose. A common solution is to use specific Picatinny rail sections that feature multiple lugs for a more secure and stable attachment.

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