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Q&A for FM Products Mike-9 RMB Heavy Buffer — 3 Questions & 2 Answers

Name FM Products Mike-9 RMB Heavy Buffer (3.3)
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Q
Dave B, member, from NH, United States, asked on January 08, 2026

Does this buffer have sliding internal weights...like a dead blow buffer ?

A
Answered by Shotgun, member, from OH, United States, on June 11, 2026

That's what reciprocating means.

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Q
TOM, member, from KS, United States, asked on January 05, 2026

can this buffer be used in the Foxtrot Mike FMP-9?

A
Answered by TOM, member, from KS, United States, on January 06, 2026

I contacted FoxTrot Mike and I was informed it can be but you need the kit with the A5 buffer tube and spring.

2 of 2 found the following answer helpful.
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Q
Skipholiday, member, from AL, United States, asked on August 09, 2026

Is this only for AR9’s (9mm) or will it help with an AR15 (5.56) ?? Thanks

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Last updated 2026-01-06 UTC.