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Q&A for Maxim Defense Industries CQB Stock Gen 6 for AR-15 — 21 Questions & 10 Answers

Name Maxim Defense Industries CQB Stock Gen 6 for AR-15 (4.9)
As Low As $299.95 Save Up to 19%
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Q
Rob, member, from FL, United States, asked on December 16, 2022

can I use this with an ar-57 upper? they seem to use the same buffer length. or is it only and exclusively 9mm

Expert Answer
A
Answered by Hunter, Gear Expert, from OH, United States, on January 11, 2023

The Maxim Defense Industries CQB Stock Gen 6 for AR-15 could be used with an AR57 upper.

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Q
Jerry jr, member, from TX, United States, asked on November 22, 2022

Would this stock be compatible with a Freedom Ordnance FX9?

Expert Answer
A
Answered by Hunter, Gear Expert, from OH, United States, on November 29, 2022

The Maxim Defense Industries CQB Stock Gen 6 for AR-15 might work with an FX-9. However, due to the receiver design the Maxim Defense Industries CQB Stock Gen 6 for AR-15 arms may not fit. I recommend contacting Freedom Ordnance to confirm compatibility. Also this is considered a stock, so if you have an FX-9 Pistol ensure you follow all laws regarding stocks on AR Pistols.

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Q
Weasel1400, guest, from MN, United States, asked on October 04, 2022

If you decided to put a pistol upper on your lower with this stock installed, would you be able to swap to the brace version without tube/buff removal

Expert Answer
A
Answered by Hunter, Gear Expert, from OH, United States, on October 13, 2022

The Maxim Defense Industries CQB Stock Gen 6 for AR-15 stock can be switched out for a brace. However, ensure your are following all local and federal laws in regard to SBR and AR pistols.

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Q
Brady Piepho, member, from CO, United States, asked on January 07, 2021

Do I need a shirt BCG to run this on my 300 Blkout?

A
Answered by Brandon, member, from UT, United States, on January 21, 2021

This includes a proprietary buffer and buffer spring that is compatible with standard mil-spec bolt carrier groups.

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Q
john, guest, from CA, United States, asked on November 14, 2020

So this will fit on a mil spec Ar15 lower and designed for 5.56/223? Able to properly cycle a 5” barrel with included buffer and spring?

A
Answered by Brandon, member, from UT, United States, on January 21, 2021

Maxim Defense makes CQB and PQD stocks and braces that all have the same general design. This product is a stock and can only be mounted on firearms with barrels +16" in length. Mounting this Maxim CQB stock on firearms with barrels shorter than 16" will change the NFA classification of your firearm and make it subject to further NFA regulation.

For a 5" barrel, check out the Maxim Defense CQB Pistol PDW Brace - it uses a standard BCG in conjunction with the proprietary Maxim buffer and buffer spring included with the brace.
https://www.opticsplanet.com/maxim-defense-industries-cqb-pistol-pdw-brace-for-ar15-hxcvq.html

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Q
Duane, guest, from WA, United States, asked on October 10, 2020

I see the housing is 7075, what alloy of aluminum is the buffer tube?

A
Answered by Brandon, member, from UT, United States, on January 21, 2021

Maxim Defense does not specify the grade of aluminum used for the buffer tube.

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Q
robert, guest, from FL, United States, asked on September 23, 2020

Is this compatible with Rock River Arms LAR-8 (AR1-, .308)?

A
Answered by Brandon, member, from UT, United States, on January 21, 2021

In short, the answer is no. The buffer tube may thread on, but the length of the tube is designed to accommodate AR-15 length bolt carrier groups - the additional length of the AR-10 BCG could cause some serious issues. To go even further, Maxim provides a standard 3.3 oz. buffer and spring with this kit - incompatible with the AR-10 platform. Even the heavier buffer weights Maxim has available do not match up to meet the standard 5.4 oz. weight of the AR-10.

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Q
jose, member, from TX, United States, asked on May 08, 2020

this can only be put on a rifle length ar? not on a pistol length ar? almost looks like a stabalizing stock....

A
Answered by Brandon, member, from UT, United States, on January 21, 2021

Maxim Defense makes CQB and PQD stocks and braces that all have the same general design. This product however is specifically a stock and can only be mounted on firearms with barrels +16" in length. Mounting this Maxim CQB stock on firearms with barrels shorter than 16" will change the NFA classification of your firearm and make it subject to further NFA regulation.

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Q
JesterChris, member, from AZ, United States, asked on February 06, 2020

How do we choose the silent capture spring? Features indicates standard spring Or silent capture spring.

Expert Answer
A
Answered by Ethan C., Gear Expert, from IL, United States, on March 12, 2020

These only come with the standard spring and buffer, however you can replace it with the Silent Capture System with one of these: https://www.opticsplanet.com/maxim-defense-industries-jp-silent-captured-spring.html

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Q
Jack Porter, member, from AZ, United States, asked on January 11, 2020

Does this come with the buffer and spring?

Expert Answer
A
Answered by Ethan C., Gear Expert, from IL, United States, on March 12, 2020

Yes, these come with the buffer and spring.

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