Affordable Belt Fed AR15? Huh?

Published on August 19, 2025
Duration: 20:28

This video reviews a pre-production beta sample of the Lima 6 belt-fed conversion for the AR-15 platform. The instructor highlights its potential to make belt-fed firearms more accessible due to a projected competitive price point compared to existing high-end options like the Fightlight MCR. Key features discussed include its Direct Gas Impingement system, reciprocating charging handle, and compatibility with standard AR-15 lowers with a modified bolt stop.

Quick Summary

The Lima 6 is a pre-production belt-fed upper receiver designed to convert a standard AR-15 lower into a belt-fed rifle. It aims to offer a more affordable entry into belt-fed firearms compared to existing high-end options, with a projected upper price around $3,000.

Chapters

  1. 00:00Introduction & Fightlight MCR Comparison
  2. 00:22Introducing the Lima 6 Belt-Fed
  3. 00:38Lima 6 Pricing and Availability
  4. 01:06Beta Product Status and Testing
  5. 01:22Fightlight MCR Features and Cost
  6. 02:07Lima 6 Market Entry Strategy
  7. 02:22Lima 6 AR-15 Conversion Overview
  8. 02:43Gunsmithing Career Opportunity
  9. 03:24Lower Receiver Compatibility (PSA Lower)
  10. 03:37Required Bolt Stop Modification
  11. 03:54Lima 6 Features - Rear to Front
  12. 04:11Buffer Tube and Stock
  13. 04:29Ammunition Testing (M193 vs .223)
  14. 04:41Proprietary Upper and Belt Feed System
  15. 04:48Reciprocating Charging Handle
  16. 05:20Feed Paw Mechanism
  17. 05:33Top Cover and Feed Tray Lock
  18. 06:03Mounting System Robustness
  19. 06:25Internal Mechanics and M249 Comparison
  20. 06:34Direct Gas Impingement (DI) System
  21. 06:40Gas System Location (Left Side)
  22. 06:58Adjustable Gas Flow
  23. 07:03No Quick Change Barrel Feature
  24. 07:24Compatibility with Auto Sears (FRT, Super Safety)
  25. 07:44Weight and Barrel Length
  26. 08:08Loading the Belt-Fed
  27. 08:41Strictly Belt-Fed (Not Dual Feed)
  28. 08:54Shooting Demonstration (Federal M193)
  29. 09:20Post-Firing Check
  30. 09:35Second Belt Firing
  31. 10:11Accuracy at 100 Yards
  32. 10:30Heat Generation
  33. 10:44Pre-Production Part Status
  34. 10:55Purpose of Beta Testing
  35. 11:05Manufacturer Outreach
  36. 11:14Ammunition Support (Federal)
  37. 11:19Desire for Accessible Belt-Feds
  38. 11:25Auto Sear Compatibility
  39. 11:35Fun Factor of Belt-Feds
  40. 11:40Price Barrier of High-End Belt-Feds
  41. 11:48Lima 6 Development on X
  42. 12:00Cool Down and Further Testing
  43. 12:13Future Testing Plans (1000 Round Burndown)
  44. 12:16Not a Final Review
  45. 12:29Internal Inspection of Lima 6
  46. 12:34Bolt Carrier and Gas Key
  47. 12:43Feed Paw Pin
  48. 12:50Bolt Design Comparison (AR-15 vs Lima 6)
  49. 13:11Dual Ejectors
  50. 13:21Charging Handle Screws
  51. 13:25Firing Pin and Cam Pin
  52. 13:36Heavy Duty Spring
  53. 13:45Challenges of Compact Belt-Feds
  54. 13:53Receiver and Feed Tray Length
  55. 14:07Spring Pressure Requirements
  56. 14:18Engineering and Testing Cycle
  57. 14:34Simple Mechanism
  58. 14:44Firing Pin Retainer Pin
  59. 14:54Preference for DI System
  60. 15:01Overall Impression of Lima 6
  61. 15:04Experience with Other Belt-Feds
  62. 15:14First Out-of-the-Box Reliable Belt-Fed
  63. 15:24Comparison to Other Conversions
  64. 15:49Engineering and Development Speed
  65. 15:55MCR (Strike) Development History
  66. 16:02Lima 6 Development Cycle
  67. 16:13Impressive Development Progress
  68. 16:20Opportunity for Gun Owners
  69. 16:28Addressing Criticism of Semi-Auto Belt-Feds
  70. 16:41Firearms for Fun
  71. 16:49Potential for Serious Applications
  72. 17:01Handguard Compatibility (YHM)
  73. 17:07Accessory Availability
  74. 17:14Lack of Quick Barrel Change
  75. 17:27Cost Savings vs. Features
  76. 17:41Final Testing Considerations (Belt Pull)
  77. 18:08Continued Shooting
  78. 18:36Purpose of the Video
  79. 18:40Permission from Lima 6
  80. 18:43Not Yet for Sale
  81. 18:51Enjoyment of Product Testing
  82. 18:59M27 Links and Availability
  83. 19:12Follow-up Videos Planned
  84. 19:171000 Round Burndown Test
  85. 19:34Questions for Lima 6
  86. 19:52Supporting the Channel (Patreon)
  87. 20:00YouTube Support Options
  88. 20:13Outro and Sponsor Mention

Frequently Asked Questions

What is the Lima 6 belt-fed conversion for the AR-15?

The Lima 6 is a pre-production belt-fed upper receiver designed to convert a standard AR-15 lower into a belt-fed rifle. It aims to offer a more affordable entry into belt-fed firearms compared to existing high-end options.

How does the Lima 6 compare in price to the Fightlight MCR?

The Lima 6 is projected to be significantly more affordable. A complete Lima 6 upper is estimated around $3,000, while a complete Fightlight MCR rifle costs approximately $8,300, making the Lima 6 a more accessible option.

What operating system does the Lima 6 use?

The Lima 6 utilizes a Direct Gas Impingement (DI) system, which is noted for providing a softer shooting experience compared to the short-stroke gas piston system found in some other belt-fed conversions like the Fightlight MCR.

What modifications are needed for an AR-15 lower to use the Lima 6?

A standard AR-15 lower receiver requires a modified 'shaved' bolt stop to be installed. This modification is necessary to accommodate the overhang of the Lima 6 belt-fed upper receiver.

Is the Lima 6 conversion dual-feed capable like the Fightlight MCR?

No, in its current beta configuration, the Lima 6 is strictly a belt-fed upper and does not have dual-feed capabilities to accept standard AR-15 magazines.

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