The Belt Fed They Don't Want You to See... The Lima Six

Published on August 28, 2025
Duration: 22:00

The Lima Six offers an affordable semi-automatic belt-fed upper receiver for the AR-15 platform, aiming to democratize belt-fed capability. While demonstrating extreme reliability and a high rate of fire, it requires specific buffer setups and presents potential safety concerns like a reciprocating charging handle and cook-off risks due to its closed-bolt design. The reviewer highlights its value proposition against much more expensive alternatives.

Quick Summary

The Lima Six is an affordable semi-automatic belt-fed upper receiver for AR-15s, costing around $2,000. It requires specific buffer components (A5 tube, Springco Orange, H3 buffer) and has drawbacks like a reciprocating charging handle and potential cook-off risks due to its closed-bolt design.

Chapters

  1. 00:00Introduction: The Lima Six Belt-Fed AR-15
  2. 03:04Affordability: Lima Six vs. Competitors
  3. 03:47Manual of Arms and Loading Demonstration
  4. 06:15Range Performance and Rate of Fire Test
  5. 07:02Technical Requirements: Buffer System Explained
  6. 08:07Cook-off Testing: Heat Buildup Concerns
  7. 11:35BMG Parts Co. Linker Tool Review
  8. 15:32Final Assessment: Pros and Cons

Frequently Asked Questions

What is the Lima Six belt-fed upper receiver?

The Lima Six is a semi-automatic belt-fed upper receiver designed for standard AR-15 lower receivers. It aims to provide belt-fed capability at a more affordable price point, estimated around $2,000, making it accessible to civilian shooters.

What are the key technical requirements for the Lima Six?

It requires an A5 length buffer tube, a high-power recoil spring like the Springco Orange, and an H3 buffer to reliably cycle the belt-fed mechanism due to its unique design and gas system.

What are the main drawbacks of the Lima Six belt-fed system?

Drawbacks include a hot gas system, a reciprocating charging handle that can cause burns, and the lack of a quick-change barrel. Heat buildup also poses a cook-off risk in its closed-bolt configuration.

How does the Lima Six compare in price to other belt-fed options?

The Lima Six is significantly more affordable, with an estimated $2,000 price tag. This contrasts sharply with options like FightLite, which cost over $6,000, or semi-auto M249 clones exceeding $10,000.

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