United States securities and exchange commission logo

                          September 7, 2022

       Jikun Kim
       Chief Financial Officer
       Momentus Inc.
       3901 N. First Street
       San Jose, CA 95134

                                                        Re: Momentus Inc.
Statement on Form S-3
                                                            Filed September 1,
                                                            File No. 333-267230

       Dear Mr. Kim:

              This is to advise you that we have not reviewed and will not
review your registration

               Please refer to Rules 460 and 461 regarding requests for
acceleration. We remind you
       that the company and its management are responsible for the accuracy and
adequacy of their
       disclosures, notwithstanding any review, comments, action or absence of
action by the staff.

                                                        Please contact Gregory
Herbers at 202-551-8028 with any questions.


                          Division of Corporation Finance

                          Office of Manufacturing
       cc:                                              John Titus