Q&A for FM Products Foxtrot Mike 9mm Premium Bolt Carrier Group (BCG) Assembly

FM Products Foxtrot Mike 9mm Premium Bolt Carrier Group (BCG) Assembly

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Kingslider, member, from VA, United States, asked on March 11, 2019

How well does this BCG work with either the Franklin binary trigger or the Fostech echo trigger?

Expert Answer

Answered by Armando R., Gear Expert, from IL, United States, on August 20, 2019

It should function with both binary triggers as it is an M16 cut bolt carrier.

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JuanCarlos, member, from NV, United States, asked on March 08, 2019

Does this 9mm bolt carrier group work with the new endomag system

Answered by Skscowboy, member, from TX, United States, on January 17, 2020

I tried this setup with FM Colt bolt and endomags , was not very reliable as in jamamatic, mostly do to cheap made endomag plastic ejectors that is built into the upper mag conversion. Forget running any cheap steel case ammo, almost 100% failure rate. I had only one out of three endomags that would do better than 50% with brass ammo, not good odds! Changed it over to a FM glock mag lower and bam! 100% function, all problems vanished. Glock mag setup is the less costly way to go, no doubt.

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B, member, from PA, United States, asked on January 23, 2020

Will this bcg work with a black rain lower parts kit ar15 platform?

Expert Answer

Answered by Jonathan D., Gear Expert, from IL, United States, on January 31, 2020

Please email us at techsales@opticsplanet.com for further assistance.

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Wayne, guest, from NE, United States, asked on January 21, 2020

Will the colt bcg work with the fm -9 side charge upper?

Expert Answer

Answered by Jonathan D., Gear Expert, from IL, United States, on January 31, 2020

No, it will not.

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Mr Shawn, member, from OH, United States, asked on January 11, 2020

What is the weight of the BCG please?

Expert Answer

Answered by Jonathan D., Gear Expert, from IL, United States, on January 31, 2020

FM Products does not list what the weight specification is for the BCG or removable weight, please contact them directly for further assistance.

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Swood, member, from OR, United States, asked on January 04, 2020

How much does the bcg weigh with and without removable weight? Is there additional weights to tune this to the rifle/pistol?

Expert Answer

Answered by Jonathan D., Gear Expert, from IL, United States, on January 31, 2020

FM Products does not list what the weight specification is for the BCG or removable weight, please contact them directly for further assistance.

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Herbie, member, from NC, United States, asked on December 04, 2019

Has anyone installed this with the Endomag set up?

Expert Answer

Answered by Jonathan D., Gear Expert, from IL, United States, on January 31, 2020

The Glock model should work with the Endomag conversion.

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Dylan, member, from NC, United States, asked on October 13, 2019

What is the recommended buffer spring and buffer weight when using this BCG?

Expert Answer

Answered by Armando R., Gear Expert, from IL, United States, on October 31, 2019

That really depends on a lot of factors and is not as simple as one buffer weight/spring is perfect for everyone. There are standard 9mm buffer weights and springs available for mil-spec receiver extensions. Please email us at techsales@opticsplanet.com and we can help you find the appropriate option for you.

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Trent Scott, member, from OH, United States, asked on July 26, 2019

Will this bolt work with MP5 magazines ?

Expert Answer

Answered by Armando R., Gear Expert, from IL, United States, on August 20, 2019

No as it is meant specifically for Colt pattern 9mm magazine and Glock pattern 9mm magazines only.

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Mike, member, from WA, United States, asked on July 24, 2019

Will this bolt work with the Stern Glock 9mm adaptor?

Expert Answer

Answered by Armando R., Gear Expert, from IL, United States, on August 20, 2019

Yes, this should function with the Stern 9mm magazine adapter as well.

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Q&A for FM Products Foxtrot Mike 9mm Premium Bolt Carrier Group (BCG) Assembly — 12 Questions & 13 Answers