United States Securities and Exchange Commission

Division of Corporation Finance

Office of Manufacturing

100 F Street, NE

Washington, D.C. 20549

Attention: Kristin Baldwin

REQUEST FOR ACCELERATION OF EFFECTIVENESS

Requested Date: Tuesday, April 28, 2026

Requested Time: 9:00 a.m., Eastern Time

Ladies and Gentlemen:

In accordance with Rule 461 under the Securities Act of 1933, as amended, Momentus Inc., a Delaware corporation (the “Company”), respectfully requests that the effective date for the Registration Statement referred to above be accelerated so that it will become effective at 9:00 a.m., Eastern Time, on Tuesday, April 28, 2026, or as soon thereafter as is practicable.

Please contact Stephen Hinton of Bradley Arant Boult Cummings LLP, the Company’s legal counsel, at (615) 252-3585, if you have any questions or concerns regarding this matter. Thank you in advance for your assistance.

	Sincerely,
	MOMENTUS INC.
	By:	/s/ Lon Ensler
		Name: Lon Ensler
		Title: Chief Financial Officer

cc: Stephen Hinton, Bradley Arant Boult Cummings LLP

---