<SEC-DOCUMENT>0001213900-25-079917.txt : 20251216
<SEC-HEADER>0001213900-25-079917.hdr.sgml : 20251216
<ACCEPTANCE-DATETIME>20250822161530
<PRIVATE-TO-PUBLIC>
ACCESSION NUMBER:		0001213900-25-079917
CONFORMED SUBMISSION TYPE:	CORRESP
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20250822

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			M3-Brigade Acquisition VI Corp.
		CENTRAL INDEX KEY:			0002073928
		STANDARD INDUSTRIAL CLASSIFICATION:	BLANK CHECKS [6770]
		ORGANIZATION NAME:           	05 Real Estate & Construction
		EIN:				000000000
		STATE OF INCORPORATION:			E9
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		CORRESP

	BUSINESS ADDRESS:	
		STREET 1:		1700 BROADWAY, 19TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10019
		BUSINESS PHONE:		212-202-2200

	MAIL ADDRESS:	
		STREET 1:		1700 BROADWAY, 19TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10019
</SEC-HEADER>
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<TYPE>CORRESP
<SEQUENCE>1
<FILENAME>filename1.htm
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>M3-BRIGADE ACQUISITION VI CORP.</B><BR>
1700 Broadway</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">19th Floor<BR>
New York, New York 10019</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right">August 22, 2025</P>

<P STYLE="text-align: center; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><U>VIA EDGAR</U></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><U>&nbsp;</U></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Division of Corporation Finance<BR>
Securities and Exchange Commission<BR>
100 F Street, N.E.<BR>
Washington, D.C. 20549</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Attention: Benjamin Holt and Pamela Long</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.5in"><B>Re:</B></TD><TD STYLE="text-align: left"><B>M3-Brigade Acquisition VI Corp.<BR>
Registration Statement on Form S-1<BR>
Filed August 4, 2025, as amended</B></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: left"><B>File No. 333-289225</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Dear Ladies and Gentlemen:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">Pursuant to Rule 461 promulgated
under the Securities Act of 1933, as amended, we hereby respectfully request that the effective date of the above-referenced Registration
Statement on Form S-1 (the &ldquo;<B><I>Registration Statement</I></B>&rdquo;) of M3-Brigade Acquisition VI Corp. (the &ldquo;<B><I>Company</I></B>&rdquo;)
be accelerated to 4:30 p.m. Eastern Time on August&nbsp;26, 2025, or as soon thereafter as may be practicable.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">We understand that the Staff
will consider this request as confirmation by the Company of its awareness of its responsibilities under the federal securities laws as
they relate to the issuance of the securities covered by the Registration Statement. If you have any questions regarding the foregoing,
please contact Raphael M. Russo of Paul, Weiss, Rifkind, Wharton &amp; Garrison LLP at (212) 373-3309.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0in">* * * * *</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0in">&nbsp;</P>


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  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: left">&nbsp;</TD>
    <TD COLSPAN="3" STYLE="text-align: left">Very truly yours,</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: left">&nbsp;</TD>
    <TD COLSPAN="3" STYLE="text-align: left">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: left">&nbsp;</TD>
    <TD STYLE="text-align: left">By:</TD>
    <TD COLSPAN="2" STYLE="border-bottom: Black 1.5pt solid; text-align: left"> /s/ Eric Greenhaus</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: left; width: 60%">&nbsp;</TD>
    <TD STYLE="text-align: left; width: 4%">&nbsp;</TD>
    <TD STYLE="text-align: left; width: 5%">Name:&nbsp;</TD>
    <TD STYLE="text-align: left; width: 31%">Eric Greenhaus</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: left">&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD>
    <TD STYLE="text-align: left">Title:</TD>
    <TD STYLE="text-align: left">Chief Financial Officer</TD></TR>
  </TABLE>
<P STYLE="text-align: center; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">[<I>Signature Page to Acceleration Request&mdash;M3-Brigade
Acquisition VI Corp.</I>]</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="text-align: center; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt">&nbsp;</P>

<P STYLE="text-align: center; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt">&nbsp;</P>

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