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Reviews & Ratings for FM Products Foxtrot Mike Pistol Receiver Extension Assembly — 2 reviews

(2 reviews)
FM Products Foxtrot Mike Pistol Receiver Extension Assembly
FM Products Foxtrot Mike Pistol Receiver Extension Assembly
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Perfect fit for FM brace

by Geepyj, from KY, United States Written on September 29, 2019
The FM pistol receiver extension assembly is a perfect fit for the FM pistol brace. This particular pistol extension assembly is for 556 and not 9mm. FM has a pistol receiver extension assembly specifically for 9mm. My AR pistol ran flawlessly with this receiver extension assembly. I will definitely buy again on my next pistol build.
Pros:
  • economical
  • Fits FM pistol brace
  • specifically for .556 pistols
Cons:
  • None
Best Used for:
  • .556 pistols
Would recommend: Yes
Was it helpful to you? Yes | No
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Doesn't work well in FM-9 10.5" build

by Ian, Verified Owner from MA, United States Written on May 30, 2019
Bought this for my FM-9 10.5" pistol build, functioned terribly & cause double feeds crushing the head of the bullet back into the bullet casing. Get a 308 buffer spring along with a 5.5-7.5oz weight & save yourself a lot of frustration!
Would recommend: No
0 of 2 found the following review helpful.
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Last updated 2025-11-12 UTC.