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Q&A for Maxim Defense Industries CQB Pistol - PDW Brace for AR15, Standard Buffer/Spring — 68 Questions & 68 Answers

Name Maxim Defense Industries CQB Pistol - PDW Brace for AR15, Standard Buffer/Spring (4.5)
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Q
Elliot Young, member, from TN, United States, asked on February 11, 2020

Is the Maxim CQB Brace, if paired with the proprietary Maxim JP SCS (Heavy) compatible with a Franklin Armory Binary Trigger?

Expert Answer
A
Answered by Armando R., Gear Expert, from IL, United States, on March 06, 2020

It may work, but Franklin Armory includes buffer springs meant specifically for their binary trigger. I cannot guarantee that it will function properly using the shortened buffer system that is used on these Maxim CQB PDW braces.

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Q
Kilolan, member, from TX, United States, asked on September 13, 2022

Will this brace work with its oem buffer and spring on a 8" .300 blk with a adams arms pistol length piston? Or is a special buffer weight needed

Expert Answer
A
Answered by Ethan, Gear Expert, from IL, United States, on September 23, 2022

This PDW Brace requires the Maxim Defense Buffer assembly to function properly. Your Adams Arms buffer and spring would not be compatible.

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Q
Derek Bsjakcbd, member, from PA, United States, asked on November 03, 2022

Would this work on a CMMG MK10(10mm)?

Expert Answer
A
Answered by Hunter, Gear Expert, from OH, United States, on November 07, 2022

The Maxim Defense Industries CQB Pistol - PDW Brace should work with a CMMG MK10.

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Q
pew pew, member, from MO, United States, asked on October 26, 2022

I am building a 300 blackout build. what will I need to make this compatible with? my 300 blackout is an arrow precision lower

Expert Answer
A
Answered by Hunter, Gear Expert, from OH, United States, on October 28, 2022

The Maxim Defense Industries CQB Pistol - PDW Brace will work with an Aero Precision AR15 in 300 Blackout.

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Q
ken, member, from FL, United States, asked on August 29, 2022

Does it come with a castle nut?

Expert Answer
A
Answered by Hunter, Gear Expert, from OH, United States, on September 08, 2022

The Maxim Defense Industries CQB Pistol - PDW Brace for AR15 has a built in castle nut but does not use an end plate.

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Q
Max, guest, from PA, United States, asked on August 20, 2022

Would this work with an MCX rattler?

Expert Answer
A
Answered by Ethan, Gear Expert, from IL, United States, on August 29, 2022

You would need to use the brace that allows for installation on 1913 rail interfaces. The correct model brace can be found by using the link below:
https://www.opticsplanet.com/maxim-defense-industries-scw-picatinny-rail-wide-brace.html

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Q
Michael, guest, from VA, United States, asked on August 01, 2022

I'm seeing a lot on here about buffers and springs. Is it necessary to purchase a buffer and spring in addition to this brace? For a UDP-300.

Expert Answer
A
Answered by Hunter, Gear Expert, from OH, United States, on August 12, 2022

The Maxim Defense Industries CQB Pistol - PDW Brace uses a proprietary buffer, and buffer spring. It will not work with a standard buffer and buffer spring. The Maxim Defense Industries CQB Pistol - PDW Brace comes with a Maxim Defense buffer and spring.

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Q
Ty, guest, from WI, United States, asked on July 18, 2022

Will this work on an ar10 aero precision lower

Expert Answer
A
Answered by Hunter, Gear Expert, from OH, United States, on August 01, 2022

The Maxim Defense Industries CQB Pistol - PDW Brace and buffer assembly is for small frame AR15's and will not work with an AR10.

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Q
josh, member, from NC, United States, asked on July 17, 2022

Will this work with 223, 5.56?

Expert Answer
A
Answered by Ethan, Gear Expert, from IL, United States, on August 01, 2022

Yes, the Maxim Defense Industries CQB Pistol - PDW Brace includes a standard H buffer (3 oz.) designed for 5.56/.223.

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Q
epack, member, from CA, United States, asked on April 12, 2022

What buffer weight comes with this brace? I need a Maxim H1 Buffer and Spring assembly.

Expert Answer
A
Answered by Hunter, Gear Expert, from OH, United States, on April 21, 2022

These Maxim Defense Industries CQB Pistol - PDW Brace for AR15 come with the Standard buffer weight and spring, not the H1.

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