Buffer Upgrade Kit for Lima Six

The Lima Six belt fed upper receiver WILL NOT FUNCTION with a standard AR15 buffer setup. This is because the Lima Six has a stretched upper receiver, which requires more room in the buffer tube to cycle. There are two options for buffer configurations that work:

1. A shorter buffer (AR10 length, 2.5″ long) in a standard 7″ carbine length tube (SEMI AUTO ONLY)
2. A standard buffer (AR15 length, 3.125″ long) in a longer A5 7.75″ length tube (required for full auto)

This upgrade kit contains what you need for OPTION 2. It includes an A5 buffer tube, H3 buffer, and Sprinco Orange spring.

These are commercially available parts that can either be purchased from us, or sourced anywhere else. We are simply offering these items for convenience.

Additional information