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Q&A for FM Products Ultra Light 9mm Barrel, 16 inch — 7 Questions & 5 Answers

Name FM Products Ultra Light 9mm Barrel, 16 inch (5)
$175.00 $148.99 Save 15%
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Q
yackasoba, member, from VA, United States, asked on April 24, 2023

Is this barrel direct blow?

Expert Answer
A
Answered by Ethan, Gear Expert, from IL, United States, on April 26, 2023

Yes, the FM Products Ultra Light 9mm Barrel does not use a gas block. It is designed to function with direct blowback AR9 platform rifles.

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Q
happy camper, member, from CA, United States, asked on June 12, 2022

Does It work with endow mags, colt , Glock magazine well adapter ? Stern defense

Expert Answer
A
Answered by Hunter, Gear Expert, from OH, United States, on June 24, 2022

The FM Products Ultra Light 9mm Barrel will work with all Colt and Glock style uppers. However, the manufacturer states that the Stern Magwell adapter needs to be modified to work with the FM-9 uppers, but they do not state any other compatibility specifications with their barrels.

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Q
none, guest, from VA, United States, asked on April 24, 2022

Hi, Can you tell me the outside diameter of the barrel ?

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A
Answered by Hunter, Gear Expert, from OH, United States, on May 10, 2022

The manufacturer does not state the outside diameter of the FM Products Ultra Light 9mm Barrel. I recommend contacting the manufacturer for that information.

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Q
Bittysann, member, from CA, United States, asked on April 21, 2022

How much does this barrel weight?

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A
Answered by Hunter, Gear Expert, from OH, United States, on May 02, 2022

The FM Products Ultra Light 9mm Barrel, 16 inch is 1lb 2oz.

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Q
Bittysann, member, from CA, United States, asked on April 19, 2022

How much does this weight?

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A
Answered by Hunter, Gear Expert, from OH, United States, on May 03, 2022

The FM Products Ultra Light 9mm Barrel, 16 inch weighs 1lbs 2oz.

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Q
GoldenTurtle, guest, from CA, United States, asked on August 23, 2026

I have a angstadarms 0940 9mm receiver set. My lower receiver is designed for Glock magazines. Is feed geometry on this barrel able accept from Glock

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Q
Johnny, member, from CA, United States, asked on March 07, 2024

I see that the barrel doesn’t have the little thing on it to prevent it from spinning on the upper receiver. Is it ok without it?

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Last updated 2025-11-12 UTC.